Air/Hydraulic Actuators master cylinders, stem seal master cylinders, and stem seal actuators with air chambers Convert Air Pressure to Hydraulic Pressure
Air/Hydraulic Actuators Catalog Index Foreword.................. Page 2 Purpose of Catalog............ Page 3 Description of Air/Hydraulic Actuators... Page 3 Master Cylinder with Air Chamber..... Page 4 Master Cylinder with Air Chamber..... Page 6 Master Cylinder with Air Chamber..... Page 8 Stem Seal Master Cylinder with Air Chamber............. Page 10 Stem Seal Actuator with Air Chamber.. Page 12 Stem Seal Actuator with Air Chamber.. Page 14 Stem Seal Actuator with Air Chamber.. Page 16 Air Actuated Straight Bore Master Cylinder with Auto-Apply..... Page 18 Fluid Reservoirs............. Page 20 Application Data Sheet.......... Page 21 MICO could not possibly know of and give advice with respect to all conceivable applications in which this product may be used and the possible hazards and/or results of each application. MICO has not undertaken any such wide evaluation. Therefore, anyone who uses an application which is not recommended by the manufacturer, first must completely satisfy himself that a danger will not be created by the application selected, or by the particular model of our product that is selected for the application. Foreword The same dependability and performance that goes into every MICO Braking System Product also goes into our versatile, high-performance Air/Hydraulic Actuators and their components. This is an important consideration when you select an actuator for a system requiring air/hydraulic power. The MICO Air/Hydraulic Actuators presented in this catalog are designed to take advantage of available pressurized air sources to produce high hydraulic pressures. This design feature is especially important for towing self-propelled hydraulically braked vehicles when towing vehicle is equipped with air. The towed vehicle s brakes are controlled by the air/hydraulic actuator when used with a remote air reservoir and relay emergency valve. These actuators can also be used for industrial applications. Air chamber sizes are available from 12 to 36 square inches and hydraulic displacement from 1.0 to 5.9 cubic inches. Both remote or integral reservoir models are available for mineral base hydraulic oil or brake fluid. System fluids other than DOT 3, 4, 5 or 5.1 brake fluid or mineral based hydraulic oils may require special seals. Consult MICO, Incorporated for recommendations. 2
Purpose of this Catalog This catalog is designed to assist you in selection of a MICO Air/Hydraulic Actuator best suited to your requirements. To help make the user more aware of possible air/hydraulic applications we have separated the actuators into four sections and have listed some general areas of applications. All air/hydraulic sections contain features, a description of the actuator, a sectional drawing, system schematic, dimensional drawings and a specifications chart. The specifications charts contain technical data for all available models. Should you need assistance in determining which Air/Hydraulic Actuator is right for your needs, send us the specifications of your application. Our engineering department will analyze your application and recommend the actuator suitable for your needs. If you prefer, we will have one of our field representatives call on you to discuss your application. We hope you will find this catalog to be a useful reference manual as well as a product catalog. Description of Air/Hydraulic Actuators Combining the speed of air operation with the control and high force of fluid can result in an ideal circuit. Air/Hydraulic Actuators are the combination of a fluid actuator and an air chamber. The air chamber is used to convert low air pressure to high hydraulic pressure. There are three types of MICO Air/Hydraulic Actuators to choose from; the Master Cylinder Type, the Stem Seal Master Cylinder Type with Integral Reservoir and the Straight Bore Actuator Type for use with a remote reservoir. Each has its own advantages to offer. Applications Forestry Vehicles Logging Equipment Trailers Construction Equipment Agricultural Vehicles and Equipment Marine Applications Waste Haulers Recycling Vehicles Landfill Vehicles Mining Vehicles and Equipment Material Handling Vehicles and Equipment Railroad Vehicles and Equipment 3
Air/Hydraulic Actuator (master cylinder with air chamber) FEATURES Available with or without internal residual check valve Incorporates a conventional master cylinder Produces high hydraulic pressures Available for industrial and mobile applications Available with air chamber sizes of 12 or 16 square inches hydraulic displacement of 23.0 cm 3 (1.4 in 3 ) Sealed diaphragm fluid reservoir DESCRIPTION The MICO Master Cylinder Type Air/Hydraulic Actuator is the combination of a conventional master cylinder and an air chamber. The master cylinder is a single acting type with one piston. Air pressure is used to actuate a push rod in the air chamber. The push rod in turn moves the piston in the master cylinder which forces the hydraulic fluid into the system. Model No. 12-460-017 shown TYPICAL SYSTEM SCHEMATIC 4
millimeters inches Model No. 12-460-017 shown NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type Internal Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 12-460-017 BF Yes 30 cm 2 (12 in 2 ) 83 bar (1200 PSI) 23.0 cm 3 (1.4 in 3 ) 35.1 mm (1.38 in) 28.6 mm (1.125 in) 12-460-023 BF Yes 41 cm 2 (16 in 2 ) 110 bar (1600 PSI) 23.0 cm 3 (1.4 in 3 ) 35.1 mm (1.38 in) 28.6 mm (1.125 in) 12-460-025 BF No 30 cm 2 (12 in 2 ) 83 bar (1200 PSI) 23.0 cm 3 (1.4 in 3 ) 35.1 mm (1.38 in) 28.6 mm (1.125 in) 12-460-027 BF No 41 cm 2 (16 in 2 ) 110 bar (1600 PSI) 23.0 cm 3 (1.4 in 3 ) 35.1 mm (1.38 in) 28.6 mm (1.125 in) BF = DOT 3, 4, 5 and 5.1 brake fluid. All model numbers have a maximum air pressure rating of 8 bar (120 PSI). All model numbers have right side mounting brackets when viewed from the air chamber end of actuator. 5
Air/Hydraulic Actuator (master cylinder with air chamber) FEATURES Available with or without internal residual check valve Incorporates a conventional master cylinder Produces high hydraulic pressures Available for industrial and mobile applications Actuator components are protected from environmental contaminates Available with a 30 or 36 square inch air chamber DESCRIPTION The Air/Hydraulic Actuators listed here are similar to those found in the previous section. These actuators are also the combination of a conventional master cylinder and an air chamber. The models in this section however, use a larger straight bore master cylinder for more displacement and a larger air chamber for more pressure. Like the models in the previous section, air pressure is used to actuate a push rod in the air chamber. In turn the push rod moves the master cylinder piston which forces hydraulic fluid into the system. Model No. 02-460-580 shown TYPICAL SYSTEM SCHEMATIC 6
Model No. 02-460-580 shown millimeters inches NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type Internal Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 02-460-580 BF Yes 91 cm 2 (36 in 2 ) 103 bar (1500 PSI) 96.7 cm 3 (5.9 in 3 ) 62.2 mm (2.45 in) 44.5 mm (1.750 in) Vented 02-461-580 BF No 91 cm 2 (36 in 2 ) 103 bar (1500 PSI) 96.7 cm 3 (5.9 in 3 ) 62.2 mm (2.45 in) 44.5 mm (1.750 in) Vented 03-460-437 BF Yes 76 cm 2 (30 in 2 ) 50 bar (720 PSI) 88.5 cm 3 (5.4 in 3 ) 57.2 mm (2.25 in) 44.5 mm (1.750 in) Ported / 1/2-20UNF BF = DOT 3, 4, 5 and 5.1 brake fluid. All model numbers have a maximum air pressure rating of 8 bar (120 PSI). All model numbers have right side mounting brackets when viewed from the air chamber end of actuator. Special mounting bracket. Contact MICO for more information. Filler Cap 7
Air/Hydraulic Actuator (master cylinder with air chamber) FEATURES Contains an internal residual check valve Incorporates a conventional master cylinder Produces high hydraulic pressures Available for industrial and mobile applications Actuator components are protected from environmental contaminates DESCRIPTION This actuator is also the combination of a conventional master cylinder and an air chamber. The model in this section uses a large straight bore master cylinder for greater displacement. Air pressure is used to actuate a push rod in the air chamber, which moves the master cylinder piston and forces hydraulic fluid into the system. Model No. 03-460-436 shown TYPICAL SYSTEM SCHEMATIC 8
millimeters inches Model No. 03-460-436 shown NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 03-460-436 BF Yes 30 cm 2 (12 in 2 ) 31 bar (450 PSI) 68.8 cm 3 (4.20 in 3 ) 44.5 mm (1.75 in) 44.5 mm (1.750 in) BF = DOT 3, 4, 5 and 5.1 brake fluid. Maximum air pressure rating of 8 bar (120 PSI). 9
Air/Hydraulic Actuator (stem seal master cylinder with air chamber) FEATURES Positive alignment of actuating components Actuator components protected from environmental contaminates Ideal for spring brakes Available with air chamber sizes from 20 to 36 square inches fluid displacement of 57.40 cm 3 (3.5 in 3 ) Available for industrial and mobile applications using hydraulic oil or brake fluid Includes stroke indicator Internal valving enhances bleeding process and extends normal service life of primary seal DESCRIPTION These MICO Air/Hydraulic Actuators are a combination of a fluid actuator and an air chamber. They are designed to take advantage of available pressurized air sources to produce hydraulic pressure. This design feature allows them to be used in many brake applications in the construction, material handling, mining, forestry and farming industries as well as many industrial applications. When sizing an air/hydraulic actuator to a particular application, the hydraulic displacement and required system pressure must be determined. The required system fluid depends upon the type of wheel brake system on the vehicle. These air/hydraulic actuators have a greater displacement output than the wheel brake system input plus an adequate reserve. Consult the brake or axle manufacturer for the needed displacement. The conversion ratio is the ratio of the hydraulic output pressure to air input pressure. TYPICAL SYSTEM SCHEMATIC Model No. 02-460-501 shown 10
millimeters inches Model No. 02-460-501 shown NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type Internal Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter Filler Cap Mounting Bracket 02-460-501 BF Yes 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-460-502 HO Yes 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-460-503 BF No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/4-18NPTF Right 02-460-504 HO No 91 cm 2 (36 in 2 ) 138 bar (2000 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/8-27NPTF Left 02-460-505 BF Yes 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-460-506 HO Yes 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-460-507 BF Yes 91 cm 2 (36 in 2 ) 138 bar (2000 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-460-512 HO No 51 cm 2 (20 in 2 ) 76 bar (1100 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Left 02-460-514 HO No 91 cm 2 (36 in 2 ) 141 bar (2045 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/8-27NPTF Left 02-460-515 BF No 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Left 02-460-516 HO No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/8-27NPTF Top 02-460-517 BF No 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/4-18NPTF Right 02-460-518 HO No 91 cm 2 (36 in 2 ) 138 bar (2000 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Left 02-460-519 BF No 91 cm 2 (36 in 2 ) 138 bar (2000 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/8-27NPTF Right 02-460-521 BF Yes 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Left 02-460-523 BF No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/4-18NPTF Left 02-460-527 BF No 91 cm 2 (36 in 2 ) 138 bar (2000 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Ported / 1/4-18NPTF Right 02-461-501 BF No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-461-502 HO No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-461-505 BF No 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-461-506 HO No 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Right 02-461-521 BF No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.500 in) Vented Left BF = DOT 3, 4, 5 and 5.1 brake fluid. HO = mineral base hydraulic oil. All model numbers have a maximum air pressure rating of 8 bar (120 PSI). When viewed from the air chamber end of actuator. 11
Air/Hydraulic Actuator (stem seal actuator with air chamber) FEATURES Allows towed vehicle s brakes to be controlled from brake pedal of towing vehicle Ideal for spring brakes - cup seals never pass over ports Available with air chamber sizes from 12 to 30 square inches hydraulic displacements of 23.4 cm 3 (1.43 in 3 ) and 41.6 cm 3 (2.54 in 3 ) Available for industrial and mobile applications DESCRIPTION The MICO Straight Bore Actuator Type Air/Hydraulic Actuator is the combination of a remote actuator and an air chamber. The remote actuator has a single acting piston with a stem seal. Air pressure is used to actuate a push rod in the air chamber. The push rod in turn moves a piston in the hydraulic chamber which causes the stem seal to close off the fluid reservoir port. The continued movement of the hydraulic piston then generates high hydraulic pressures at the outlet port. This Air/Hydraulic Actuator allows either one of two pressure sources to operate a slave cylinder, brake or other device. If connected to a remote reservoir this actuator can be used as a single source. Model No. 12-460-074 shown TYPICAL SYSTEM SCHEMATIC 12
millimeters inches Model No. 12-460-074 shown NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type External Residual Check Valve Air Chamber Air Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter Mounting Bracket 02-460-155 BF No 41 cm 2 (16 in 2 ) 110 bar (1600 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left 12-460-012 HO No 30 cm 2 (12 in 2 ) 47 bar (680 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Left 12-460-013 BF No 30 cm 2 (12 in 2 ) 47 bar (680 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Left 12-460-015 BF No 41 cm 2 (16 in 2 ) 62 bar (900 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Left 12-460-029 BF Yes 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Bottom 12-460-032 HO No 61 cm 2 (24 in 2 ) 94 bar (1360 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Bottom 12-460-034 HO No 76 cm 2 (30 in 2 ) 117 bar (1700 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Bottom 12-460-055 BF No 41 cm 2 (16 in 2 ) 69 bar (900 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Left 12-460-057 BF No 51 cm 2 (20 in 2 ) 76 bar (1100 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) Right 12-460-063 BF Yes 30 cm 2 (12 in 2 ) 83 bar (1200 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left 12-460-070 HO No 30 cm 2 (12 in 2 ) 83 bar (1200 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left 12-460-071 BF No 30 cm 2 (12 in 2 ) 83 bar (1200 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left 12-460-073 BF No 41 cm 2 (16 in 2 ) 110 bar (1600 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left 12-460-074 HO No 41 cm 2 (16 in 2 ) 110 bar (1600 PSI) 23.4 cm 3 (1.43 in 3 ) 36.6 mm (1.44 in) 28.6 mm (1.125 in) Left BF = DOT 3, 4, 5 and 5.1 brake fluid. HO = mineral base hydraulic oil. All model numbers have a maximum air pressure rating of 8 bar (120 PSI). All model numbers have a maximum fluid pressure rating of 172 bar (2500 PSI). When viewed from air chamber end of actuator. 13
Air/Hydraulic Actuator (stem seal actuator with air chamber) FEATURES Allows towed vehicle s brakes to be controlled from brake pedal of towing vehicle Ideal for spring brakes - cup seals never pass over ports Has a 20 or 36 square inch air chamber hydraulic displacements of 83.8 cm 3 (5.11 in 3 ) and 96.0 cm 3 (5.86 in 3 ) Available for industrial and mobile applications DESCRIPTION This MICO Straight Bore Actuator Type Air/Hydraulic Actuator is also the combination of a remote actuator and an air chamber. Air pressure is used to actuate a push rod in the air chamber. The push rod in turn moves a piston in the hydraulic chamber which closes the reservoir feed port of the high pressure piston. The continued movement of the hydraulic piston then generates high hydraulic pressures at the outlet port. Model No. 03-460-148 shown TYPICAL SYSTEM SCHEMATIC 14
millimeters inches Model No. 03-460-148 shown NOTE: Contact MICO, Inc. for additional installation information. SPECIFICATIONS Model Number Fluid Type Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 03-460-147 BF No 91 cm 2 (36 in 2 ) 103 bar (1500 PSI) 96.0 cm 3 (5.86 in 3 ) 62.0 mm (2.44 in) 44.5 mm (1.750 in) 03-460-148 HO No 91 cm 2 (36 in 2 ) 103 bar (1500 PSI) 96.0 cm 3 (5.86 in 3 ) 62.0 mm (2.44 in) 44.5 mm (1.750 in) 03-460-338 HO No 51 cm 2 (20 in 2 ) 55 bar (800 PSI) 83.8 cm 3 (5.11 in 3 ) 54.0 mm (2.13 in) 44.5 mm (1.750 in) BF = DOT 3, 4, 5 and 5.1 brake fluid. HO = mineral base hydraulic oil. All model numbers have a maximum air pressure rating of 8 bar (120 PSI). All model numbers have right side mounting brackets when viewed from the air chamber end of actuator. 15
Air/Hydraulic Actuator (stem seal actuator with air chamber) FEATURES Allows towed vehicle s brakes to be controlled from brake pedal of towing vehicle Ideal for spring brakes - cups never pass over ports Available for industrial and mobile applications DESCRIPTION The MICO Straight Bore Actuator Type Air/Hydraulic Actuator is the combination of a remote actuator and an air chamber. The remote actuator has a single acting piston with a stem seal. Air pressure is used to actuate a push rod in the air chamber. The push rod in turn moves a piston in the hydraulic chamber which causes the stem seal to close off the fluid reservoir port. The continued movement of the hydraulic piston then generates high hydraulic pressures at the outlet port. This Air/Hydraulic Actuator allows either one of two pressure sources to operate a slave cylinder, brake or other device. If connected to a remote reservoir this actuator can be used as a single source. Model No. 12-460-031 shown TYPICAL SYSTEM SCHEMATIC 16
millimeters inches NOTE: Contact MICO, Inc. for additional installation information. Model No. 12-460-031 shown SPECIFICATIONS Model Number Fluid Type External Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 12-460-031 BF Yes 61 cm 2 (24 in 2 ) 94 bar (1360 PSI) 41.6 cm 3 (2.54 in 3 ) 36.6 mm (1.44 in) 38.1 mm (1.500 in) BF = DOT 3, 4, 5 and 5.1 brake fluid. Maximum air pressure rating of 8 bar (120 PSI). Maximum fluid pressure rating of 172 bar (2500 PSI). 17
Air/Hydraulic Actuator (air actuated straight bore master cylinder with auto-apply) FEATURES Positive alignment of actuating components Actuator components protected from environmental contaminates Ideal for spring brakes Available for industrial and mobile applications using hydraulic oil or brake fluid Includes a stroke indicator Internal valving enhances bleeding process and extends normal service life of primary seal DESCRIPTION These MICO Air/Hydraulic Actuators are a combination of a fluid actuator and an air chamber. They are designed to take advantage of available pressurized air sources to produce hydraulic pressure. This design feature allows them to be used in many brake applications in the construction, material handling, mining, forestry and farming industries as well as many industrial applications. When sizing an air/hydraulic actuator to a particular application, the hydraulic displacement and required system pressure must be determined. The required system fluid depends upon the type of wheel brake system on the vehicle. These air/ hydraulic actuators must have a greater displacement output than the wheel brake system input plus an adequate reserve. Consult the brake or axle manufacturer for the needed displacement. The conversion ratio is the ratio of the hydraulic output pressure to air input pressure. When the air tank pressure is released, the spring apply (parking) section will actuate the master cylinder. When the minimum release pressure is applied to override the spring apply section, the service brake port will actuate the master cylinder. TYPICAL SYSTEM SCHEMATIC Model No. 03-460-353 shown 18
millimeters inches NOTE: Contact MICO, Inc. for additional installation information. Model No. 03-460-353 shown SPECIFICATIONS Model Number Fluid Type Residual Check Valve Air Chamber Size Hydraulic Pressure @ 6.9 bar (100 PSI) Air Pressure Displacement Stroke Bore Diameter 03-460-353 BF No 61 cm 2 (24 in 2 ) 93 bar (1350 PSI) 57.4 cm 3 (3.5 in 3 ) 50.8 mm (2.00 in) 38.1 mm (1.5 in) BF = DOT 3, 4, 5 and 5.1 brake fluid. Maximum air pressure rating 10 bar (140 PSI). Minimum release pressure 5 bar (70 PSI). Spring apply hydraulic pressure 70 bar (1000 PSI) at 0 bar (0 PSI) air pressure. 19
Fluid Reservoirs (for direct or remote mounting) Polyallomer Reservoir Translucent for easy view of fluid level Diaphragm seals out environmental contaminants Adaptable outlet fittings Sediment trap inherent to design Easy screw on and off filler cap 238 cm 3 (14.5 in 3 ) usable fluid capacity Designs available for use with hydraulic oil or brake fluid Metal Reservoir Rugged anodized aluminum housing Easy screw on and off filler cap with baffle and breather 54 cm 3 (3.3 in 3 ) usable fluid capacity Compact design for ease of mounting Adaptable outlet fittings For use with hydraulic oil or brake fluid SPECIFICATIONS Polyallomer Reservoirs SPECIFICATIONS Metal Reservoirs Model Number 20-920-500 20-920-520 20-920-502 20-920-512 20-920-514 20-920-505 20-920-509 20-920-515 20-920-513 Fluid Type HO HO HO HO HO BF BF BF BF Outlet Fitting 9/16-18UNF-2A 9/16-18UNF-2A 9/16-18UNF-2A 1/4-18NPTF (internal) 1/4-18NPTF (internal) 9/16-18UNF-2A 1/4-18NPTF (internal) 1/4-18NPTF (internal) 1/4-18NPTF (internal) Non-vented, o-ring cover seal - no diaphragm. Metal filler cap with 1/4-18NPTF hole on top. HO = mineral base hydraulic oil. BF = DOT 3, 4, 5 and 5.1 brake fluid. (Contact MICO regarding phosphate ester fluids) Mounting Bracket Yes No Yes Yes No Yes Yes No Yes Diaphragm Part Number 32-490-009 32-490-009 none 32-490-009 32-490-009 32-490-010 32-490-010 32-490-010 32-490-010 Model Number 20-920-002 20-920-006 20-920-009 Fluid Type BF or HO BF or HO BF or HO Mounting Bracket No Yes Yes Includes two 1/4-27NPTF x 1/4 tube fittings. Includes 1/8-27NPTF male 90 elbow fitting. HO = mineral base hydraulic oil. BF = DOT 3, 4, 5 and 5.1 brake fluid. (Contact MICO regarding phosphate ester fluids) millimeters inches 20
Application Data Sheet (for Master Cylinders, Remote Actuators, Two Fluid Actuators, Air/Hydraulic Actuators, and Pressure Intensifiers) Date (confidential) Name Title Company Address City State Zip Fax Phone Country Email Are you currently working with a MICO Distributor? Yes No If yes, which one and who is the contact? Estimated Annual Quantity Is this a military application? Yes No If yes, what is the destination country? Is this an underground coal mine application? Yes No Which MICO Component? Master Cylinder Boosted Closed Center Master Cylinder Boosted Dual Master Cylinder Remote Actuator Two Fluid Actuator Air/Hydraulic Actuator Pressure Intensifier VEHICLE SPECIFICATIONS Type of vehicle or equipment Name & model no. Gross vehicle weight lb Weight distribution loaded: front lb or % loaded rear lb or % Weight distribution empty: front lb or % empty rear lb or % Wheelbase: inch Center of gravity (vertical): loaded empty Rolling radius: front inch Rolling radius rear inch Maximum loaded speed (level) MPH Maximum grade in favor of load % Rate of deceleration desired: Stop in ft from MPH or ft/s 2 Coefficient of friction between tire and ground (estimated) Type of road surface Is this application required to conform with recommended practices or standards, if so which ones HYDRAULIC SYSTEM CHARACTERISTICS Attach any available hydraulic system schematics relevant to full power actuation circuits. Maximum pump flow GPM (U.S.) Minimum pump flow GPM (U.S.) Pump type: Gear Vane Piston Manufacturer and model no. Load Sensing: Yes No Standby PSI Internal bleed down: Yes No Relief valve PSI Oil names and numbers Filtration microns Operating temperature range: Minimum F Normal F Maximum F Flow required for components other than brake valve GPM (U.S.) What is the function of other components? BRAKE SYSTEM SPECIFICATIONS Type of brake system: Single Tandem Other Type of brake actuator presently used Bore diameter inch, and stroke inch continued... 21
Pedal ratio Pedal travel inch Maximum pedal effort lb Maximum fluid displacement required (in 3 ) Maximum braking pressure PSI Number of wheels to brake Caliper Drum Type of Fluid: DOT 3 or 4 brake fluid Mineral base hydraulic oil Water base Synthetic base Fluid manufacturer and brand name Type of coupling to brake lines Type of mounting: Side mount Flange mount Other Air system characteristics: Maximum air pressure available from brake valve PSI Compressor cut in pressure PSI Type of mounting: Side mount Flange mount Other Caliper brake characteristics: Piston diameter inch Number of pistons per caliper side Maximum stroke inch, or area in 2 Piston pretravel inch to contact disc Volume requirements (per brake): New lining in 3 maximum Worn lining in 3 maximum Brake torque capacity (per brake): lb-in at PSI Maximum allowable pressure PSI Manufacturer Model Number Drum brake characteristics: Type Brake size (diameter & width) x inch Wheel cylinder: diameter inch Number of wheel cylinders Self adjusting Yes No Piston travel inch to contact drum Actuation volume requirements (per brake): New lining in 3 maximum Worn lining in 3 maximum Brake torque capacity (per brake): lb-in at PSI Contact deflection Contact area System deflection Maximum allowable pressure PSI Manufacturer Model Number Special military specification requirements: Comments: NOTICE Component and system recommendations made by MICO, Incorporated are based on information supplied by potential user and/or system designer. The potential user and/or designer must make final acceptance and approval of components and system after testing performance on an actual application for which system was designed. MICO is a registered trademark of MICO, Inc. MICO is registered in the U.S. Patent and Trademark Office as well as in Australia, Indonesia, Japan, Peoples Republic of China, South Korea, and the European Community. Innovative Braking and Controls Worldwide Form No. 80-001-026 Revised 2008-08-05 www.mico.com 22 MICO, Incorporated 1911 Lee Boulevard / North Mankato, MN U.S.A. 56003-2507 Tel: +1 507 625 6426 Fax: +1 507 625 3212
MICO has made every attempt to present accurate information in catalogs, brochures, and other printed material. MICO can accept no responsibility for errors from unintentional oversights that may exist. Due to a continuous program of product improvement, both materials and specifications are subject to change without notice or obligation. Refer to www.mico.com for the most recent versions of our literature. If you have any further questions, please call MICO. Innovative Braking and Controls Worldwide MICO, Incorporated 1911 Lee Boulevard North Mankato, MN U.S.A. 56003-2507 Tel: +1 507 625 6426 Fax: +1 507 625 3212 MICO Europe Ltd. Goodwood Road / Pershore Worcestershire Wr10 2RY England Tel: +44(0)1386 555562 Fax: +44(0)1386 553955 Web Site: www.mico.com MICO is a registered trademark of MICO, Incorporated. MICO is registered in the U.S. Patent and Trademark Office as well as in Australia, Indonesia, Japan, Peoples Republic of China, South Korea, and the European Community. PRODUCT LINE: Brakes Caliper Disc Brakes Multiple Disc Brakes Brake Locks Electric Mechanical Controls Electronic Controls Hydraulic Throttle Controls Pedal Controls Switches Transducers/Sensors Cylinders Drive Axle Brake Actuators Slave Cylinders Wheel Cylinders Master Cylinders Boosted Cylinders Hydraulically and Air Actuated Straight Bore Cylinders Two-Stage Cylinders Valves Accumulator Charging Electrohydraulic Brake Park Brake Pressure Modulating Miscellaneous Components In-line Residual Check Valves Pump with Integrated Valves Reservoirs Form No. 84-460-006 Revised Online Version 2009-08-19 Printed in U.S.A.