MS Disc Brake Caliper DS1500 TWIFLEX MS 6.4 20.5 to disc edge 137 R22 2 Holes14 dia M12-87Nm) 12.7 1 76 135 2 121 Caliper Part Number. 6780277 Caliper Part Number. 6780842 for K and L Thrusters Weight Pad wear allowance Total pad area Pad dimensions new Pad material - 1.5 kg. - 8mm - 58cm (2 Pads) - 63.5 x 46 x 12.7 thk. - Asbestos-free high friction material AVAILABLE SPARES Item Component Part No. 1 Pad Assembly 0780123 2 Spring Clip 7900024 Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads. The use of any other brake pads will invalidate the warranty. Twiflex Limited reserves the right to modify or change the design without prior notice.
MS Disc Brake Caliper General Description The MS series of disc brake calipers are used with brake disc 12.7mm thick Normally one or two units will be used per disc but the number may be increased, depending on disc size. The brake units can be positioned at any angle around the periphery of the disc, but ideally they should be mounted horizontally ( in 3 or 9 o clock positions ) in relation to the disc. Brake Description Data Sheet Maximum Braking Force - kn MSA Pneumatically applied - Spring released 1501 2.76 MSD Pneumatically applied - Spring released 1502 1.44 MSE Pneumatically applied - Spring released 1503 0.29 MSF Mechanically applied - Lever operated 1504 1.88 MSG Pneumatically applied - Spring released 1505 0.76 MSH Mechanically applied - Hand operated 1506 1.01 MSK Spring applied - Pneumatically Released 1507 0.87, 1.74 and 2.6 MSL Spring applied - Hydrauliclly Released 1508 0.87, 1.74 and 2.6 Discs: A range of standard discs of 12.7mm thick are available from Twiflex see Data Sheet DS0501. Minimum disc diameter for the MS caliper is 150mm Controllers: Standard Twiflex Controllers are available for single or multi-caliper installations for use with electric, pneumatic and hydraulic signalling systems. Pad replacement: To replace the pads, secure the installation to ensure safety. Ease out the pad springs and remove worn pads. Clean the disc and pad mounts with a suitable cleaning agent such as white spirit. Fit new pads. Replace pad springs. For bedding-in and conditioning procedures see Publication M1060 Health and Safety data sheet refer to DS 0500 www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1500 11/11 Printed in USA
MSA Disc Brake Caliper - Pneumatically Applied, Spring Released DS1501 Nominal dimensions given For caliper dimensions see DS1500 Air Inlet G 3/8 (3/8 BSP) 140 Dia TWIFLEX MS 154 12.7 Disc Thickness 76 62 165 7 Disc Diameter mm 250 300 350 400 460 515 610 6 Air Pressure - bar 5 4 3 2 1 Weight (caliper and thruster) - 2.8kg (thruster only) - 1.3kg Volume displacement of thruster at full stroke is 300ml. Maximum Braking Force = 2.76kN @ 7 bar 0 0 100 200 300 400 500 600 700 800 Braking Torque Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient μ= 0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius - 0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads.the use of any other brake pads will invalidate the warranty. Twiflex Limited reserves the right to modify or change the design without prior notice.
MSA Disc Brake Caliper - Pneumatically Applied, Spring Released 140 Dia 2 32A/F Air Inlet G 3/8 (3/8" BSP) 15.9 dia G3/4 26.4 dia 1 11 5 38 Max Stroke Section - 133 Thruster Part Number 7200276 AVAILABLE SPARES Item Component Part No. 1 Diaphragm Kit 7902801 2 Piston Rod Assembly 7200494 This range of pneumatically operated brakes uses dry and filtered compressed air at pressures up to 7 bar. Pneumatic brakes require a control valve which may be operated either manually, or by pneumatic or electrical signal. Should it become necessary to replace a diaphragm, ensure air supply is disconnected, remove the M5 bolts and the rear cap of the thruster. Remove the worn diaphragm; clean-up the contacting surfaces and re-assemble with the new diaphragm and bolts in position (Tightening Torque 5.7Nm). Thruster Fitment 1. Offer thruster to caliper making sure that the lock nut is removed before placing push rod through caliper arm. Caliper Arms 2. Fit lock nut over the push rod and locate it s end within the slot of the other arm. 3. Tighten the lock nut to 50-60 Nm. Pushrod Locknut Thruster www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1501 11/11 Printed in USA
MSD Disc Brake Caliper - Pneumatically Applied, Spring Released Nominal dimensions given For caliper dimensions see DS1500 Air Inlet G1/4(1/4" BSP) 120 Dia DS1502 TWIFLEX MS 141 12.7 Disc Thickness 76 62 165 7 Disc Diameter mm 250 300 350 400 460 515 610 Air Pressure - bar 6 5 4 3 2 1 Weight (caliper and thruster) - 2.5kg (thruster only) - 1.0kg Volume displacement of thruster at full stroke is 150ml. Maximum pressure 7 bar Maximum Braking Force = 1.44kN @ 7 bar 0 0 50 100 150 200 250 300 350 400 Braking Torque Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient μ= 0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius - 0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads.the use of any other brake pads will invalidate the warranty. Twiflex Limited reserves the right to modify or change the design without prior notice.
MSD Disc Brake Caliper - Pneumatically Applied, Spring Released 2 Air Inlet G1/4(1/4" BSP) 32A/F 15.9 dia G3/4 26.4 dia 1 19 Max Stroke 5-7 38 120 Dia 121 SECTION - Thruster Part Number 7200865 AVAILABLE SPARES Item Component Part No. 1 Diaphragm Kit 7902799 2 Piston Rod Assembly 7200867 This range of pneumatically operated brakes uses dry and filtered compressed air at pressures up to 7 bar. Pneumatic brakes require a control valve which may be operated either manually, or by pneumatic or electrical signal. Should it become necessary to replace a diaphragm, ensure air supply is disconnected, remove the M5 bolts and the rear cap of the thruster. Remove the worn diaphragm; clean-up the contacting surfaces and re-assemble with the new diaphragm and bolts in position. (Tightening Torque 5.7Nm) Thruster Fitment Caliper Arms 1. Offer thruster to caliper making sure that the lock nut is removed before placing push rod through caliper arm. 2. Fit lock nut over the push rod and locate it s end within the slot of the other arm. 3. Tighten the lock nut to 50-60 Nm. Pushrod Locknut Thruster www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1502 11/11 Printed in USA
MSE Disc Brake Caliper - Pneumatically Applied, Spring Released DS1503 Nominal dimensions given For caliper dimensions see DS1500 G1/4 (1/4" BSP) 80 dia T WIFLEX MS 158 12.7 Disc Thickness 76 62 165 7 Disc Diameter mm 250 300 350 400 460 515 610 Air Pressure - bar 6 5 4 3 2 1 Weight (caliper and thruster) - 1.91kg (thruster only) - 0.41kg Volume displacement of thruster at full stroke is 8ml. Maximum pressure 7 bar Maximum Braking Force = 0.29kN @ 7 bar 0 0 10 20 30 40 50 60 70 80 90 Braking Torque Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient μ= 0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius - 0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads.the use of any other brake pads will invalidate the warranty. Twiflex Limited reserves the right to modify or change the design without prior notice.
MSE Disc Brake Caliper - Pneumatically Applied, Spring Released 80 dia 32A/F 15.9 G3/4 26.4 G1/4 (1/4 BSP) 38 31.5 Max Stroke 132 138 Section - Thruster Part Number 7200479 This range of pneumatically operated brakes uses dry and filtered compressed air at pressures up to 7 bar. Pneumatic brakes require a control valve which may be operated either manually, or by pneumatic or electrical signal. Thruster Fitment Caliper Arms 1. Offer thruster to caliper making sure that the lock nut is removed before placing push rod through caliper arm. 2. Fit lock nut over the push rod and locate it s end within the slot of the other arm. 3. Tighten the lock nut to 50-60 Nm. Pushrod Locknut Thruster www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1503 11/11 Printed in USA
MSF Disc Brake Caliper - Mechanically Applied, Lever Operated DS1504 Nominal dimensions given For caliper dimensions see DS1500 108 12.5 Dia 17.5 90 143 26 T WIFLEX MS 12.7 Disc Thickness 76 62 165 Force on Lever - N Disc Diameter mm 250 300 350 400 800 460 515 610 600 400 200 Weight (caliper and thruster) - 2.13kg (Lever assembly only) - 0.63kg Maximum Braking Force = 1.88kN @ 0.8kN force on lever 0 0 50 100 150 200 250 300 350 400 450 500 Braking Torque - Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient μ= 0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius -0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads. The use of any other brake pads will invalidate the warranty. Twiflex Limited reserves the right to modify or change the design without prior notice.
MSF Disc Brake Caliper - Mechanically Applied, Lever Operated TWIFLEX TWIFLEX Lever Part Number 7800128 Lever fitment Caliper Arms 1. Offer thruster to caliper making sure that the lock nut is removed before placing push rod through caliper arm. 2. Fit lock nut over the push rod and locate it s end within the slot of the arm. 3. Tighten the lock nut to 50-60 Nm. Push Rod Locknuts Lever www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1504 11/11 Printed in USA
MSG Disc Brake Caliper - Pneumatically Applied, Spring Released Nominal Dimensions given For caliper dimensions see DS1500 G1/4 (1/4" BSP) 80 dia DS1505 T WIFLEX MS 158 12.7 Disc Thickness 76 62 165 Air Pressure - bar 7 6 5 4 3 2 1 Disc Diameter mm 250 300 350 400 460 515 610 Weight (caliper and thruster) - 1.89kg (thruster only) - 0.39kg Volume displacement of thruster at full stroke is 21ml. Maximum pressure 7 bar Maximum Braking Force - 0.76kN @ 7bar 0 0 20 40 60 80 100 120 140 160 180 200 220 Braking Torque Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient µ=0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius - 0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads. The use of any other brake pads will invalidate the warranty. Twiflex Limted reserves the right to modify or change the design without prior notice.
MSG Disc Brake Caliper - Pneumatically Applied, Spring Released 80 dia 32A/F 15.9 G3/4 G1/4 (1/4 BSP) 38 31.5 Max. Stroke 132 138 Section - Thruster Part Number 7200482 This range of pneumatically operated brakes uses dry and filtered compressed air at pressures up to 7 bar. Pneumatic brakes require a control valve which may be operated either manually, or by pneumatic or electrical signal. Thruster Fitment Caliper Arms 1. Offer thruster to caliper making sure that the lock nut is removed before placing push rod through caliper arm. 2. Fit lock nut over the push rod and locate it s end within the slot of the other arm. 3. Tighten the lock nut to 50-60 Nm. Pushrod Locknut Thruster www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1505 11/11 Printed in USA
MSH Disc Brake Caliper - Mechanically Applied, Hand Operated Nominal Dimensions given For caliper dimensions see DS1500 94 dia DS1506 T WIFLEX MS 167 Maximum 12.7 62 Disc Thickness 76 165 1800 1600 Disc Diameter mm 250 300 350 400 460 515 610 Weight (caliper and hand knob) - 2.53kg (hand knob only) - 1.03kg Force on Handwheel - N 1400 1200 1000 800 600 400 1 Turn of Hand Knob = 90N braking force Maximum Braking Force - 1.01kN 200 0 0 50 100 150 200 250 300 Braking Torque - Nm The ratings shown on the above graph are based on fully bedded and conditioned brake pads with nominal friction coefficient µ=0.4. For bedding-in and conditioning procedures see Publication M1060. Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius. Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m) where Effective Disc Radius = Actual Disc Radius - 0.03. Twiflex Disc Brakes must be used with Twiflex asbestos free brake pads. The use of any other brake pads will invalidate the warranty. Twiflex Limted reserves the right to modify or change the design without prior notice.
MSH Disc Brake Caliper - Mechanically Applied, Hand Operated Hand Knob Assembly Part Number 7800127 Hand Knob Assembly Fitment Caliper Arms 1. Offer hand knob assembly to caliper making sure that one lock nut is removed before placing push rod through caliper arm. 2. Fit a lock nut over the push rod, locate the push rod within the slot of the other arm. 3. Adjust the lock nuts until the push rod contacts the opposite arm. 4. Tighten the lock nut to 50-60 Nm. Push Rod Locknuts www.twiflex.com 9 Briar Road, Twickenham Middlesex TW2 6RB - England +44 (0) 20 8894 1161 Fax: +44 (0) 20 8755 5601 This approval is in Accordance with Certificate number 850822 Issue 04 June 2009 Twiflex 2001. DS1506 11/11 Printed in USA