HEAVY DUTY ELECTRIC CHAIN BLOCK

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Rudolph Douglas
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World-Class Quality INDUSTRIAL WORK HORSE SERIES -

1 8 ELEPHANT LIFTING PRODUCTS HEAVY DUTY ELECTRIC CHAIN BLOCK type SINGLE SPEED type DOUBLE SPEED World-Class Quality INDUSTRIAL WORK HORSE SERIES - Severe Duty Applications - ELEPHANT CHAIN BLOCK CO.,LTD.

2 THE DA/DB SERIES DOUBLE BRAKE ELECTRIC CHAIN HOIST IS DESIGNED WITH OUR UNIQUE AND TRUSTABLE TECHNIQUES. THESE HOISTS ARE BUILT FOR A LIFTETIME OF SERVICE, RIGID IN DESIGN, AND ARE IDEAL FOR HEAVY DUTY OPERATIONS. Features of the DA/DB Electric Chain Hoist An efficient motor that offers high lift speeds The DA/DB series hoist features a newly developed motor for severe conditions, which allows it to operate continuously for long periods of time with frequent starts within an hour cycle. These lifting speeds were engineered to be as fast as possible to ensure efficiency. Quiet operation with a sealed protective body against dust Durable helical gears & an oil bath style gear case make these units quiet during operation. Solid steel side plates for a rugged heavy duty construction Highly durable load chain Our surface hardened load chain is manufactured within our factory in Osaka, Japan and is in compliance with ISO standard grade T, offering a satisfactory degree of breaking strength, wear resistance, and impact absorption. We can also offer load chain of a higher corrosion resistance upon request. Safe DOUBLE BRAKE design A mechanical brake and motor brake the electric-magnetic brake is combined with a mechanical brake to constitute a complete double brake system. Even the former alone has enough capacity to hold a static safe working load! DC brake and motor with low power consumption A DC solenoid is used for the electro-magnetic brake. This lowers the electrical consumption throughout the operation of the electric chain hoist. A safer chain guide with our unique design The DA/DB series is designed so that the chain guide s rotation on the load sheave transmits to the electrical limit switch. The electric limit switch automatically stops the operation of the hoist in the event that the load chain is raised or lowered to the chain s end. In this case, the limit switch would also engage if dust or foreign matters remain pressed within the pockets of the load sheave. Reliable double-action limit switch Electrical limit switch for this model acts in two steps. In the first step the limit switch breaks the operating circuit. Then within the second step, the limit switch breaks the main circuit. Ensuring the hoist ceases operation. Negative phase contactor and a highly efficient magnetic contact with a mechanical & electrical interlock Motor frame The motor frame is constructed with high quality aluminum cooling fins which help reduce the rise of temperature within the motor Durable chain container Pendant control switch is set at 4v for safe operation Push-push button style pendant for the DB models Top and bottom hooks with safety latch Designed to gradually open and not break suddenly in the event of an overload. A compact thrust bearing also helps to prevent the load chain from twisting. 9

3 ELECTRIC CHAIN BLOCK HOOK SUSPENSION TYPE push button type (DADB) 30 push button type (DA) push button type (DB) ELEPHANT LIFTING PRODUCTS 50kg.5ton w5ton ton

4 Specifications Model Test Load Standard Lift (ft) Load Chain Dia (mm) x Number of Falls Lifting Motor Output (H.P.) (DB) High:Low Speed Lifting Speed (ft / min) (DB) High:Low Speed 50Hz 60Hz Minimum Distance H (in) Ampere (A) Net Wt. ' : ' DA-0.5 DA-0.5 DA-W DA-S DA-.5 DA-W DA-S DA x 6.3 x 6.3 x 7. x 9.5 x 7. x. x. x : 6 3 : : 5 58 : : : 73 : 93 8 DA x DA x DA x x DB-0.5 DB-0.5 DB-W DB-S DB-.5 DB-W DB-S x 6.3 x 6.3 x 7. x 9.5 x 7. x. x 0.68 : 0.3. : 0.4. : : :.55.3 : :.55 6 : 9 4 : 8 : 4 : 7 9 : : 4 3 : 8 3 : 8 : 9 4 : 5 7 : 9 34 : 3 : 4 7 : : : 46 5 : : : 37 3 : 3 : 33 DB x 4.6 :.55 8 : 6 : Call toll-free DB x 4.6 :.55 4 : 5 7 : DB x 4.6 :.55 * Current ampere depends on the voltage and length of power cord * The length of power cord 4core cable is 6' * Standard push button cord is ' less than lift * If you require 6 button pendant control in place of 4 button, a "C" should be added to the end of the model name Dimensions (in) Model A DA / DB /. DA / DB / 3. DA / DB-W.7 / 3. DA / DB-S. / 4.3 DA / DB / 8. DA / DB-W. / 4.3 DA / DB-S 5.7 / 8. DA / DB / 8. DA / DB / 8. DA / DB / 8. DA- 6.9 * The dimensions D and E depends on the lift * For top and bottom hook specifications see page 4 * Specifications and dimensions are subject to change without notice B C D E F.5 /.8. / /.9. / /.9. / /.6.7 / / / /.6.7 / / / / / / / / / * 9 : 3 :

3 ELEPHANT LIFTING PRODUCTS ELECTRIC CHAIN BLOCK WITH ELECTRIC TROLLEY 4 push button type (DADB) For monorail 6

Option:Wiring box for saddle Magnetic contactor and transformer are included.

operating cord are not included 50kg.5ton The drawing of electric trolley.5t is different from above drawing.

5 3 ELEPHANT LIFTING PRODUCTS ELECTRIC CHAIN BLOCK WITH ELECTRIC TROLLEY 4 push button type (DADB) For monorail 6 push button type (DADB) For crane 4 push button type (DADB) For monorail 6 push button type (DADB) For crane Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included 50kg.5ton The drawing of electric trolley.5t is different from above drawing. w5ton The drawing of electric trolley 3t, 5t is different from above drawing. 7.5ton ton

6 Specifications Model Test Load 50Hz 60Hz High Speed 50 Hz / 60 Hz Low Speed 50 Hz / 60 Hz DAM DAM [3.4] DAM-W DAM-S DAM DAM-W [3.4] / / 39 DAM-S DAM [39.4] DAM DAM Standard Lift (ft) 3 Lifting Motor Traversing Output (H.P.) Motorized Trolley (DB) High:Low Motor Output Speed (H.P.) DAM x DAM x Lifting Speed (ft / min) (DB) High:Low Speed [39.4] DBM : : 9 3 :.4 9 DBM : : 8 8 : [39.4] DBM-W 0.5. : 0.4 : 4 4 : DBM-S : : 7 7 : DBM :.55 9 : 34 : / / 39 DBM-W.5.3 : 0.77 : 4 3 : [3.4] 37 DBM-S :.55 3 : 8 7 : DBM :.55 8 : 6 : [39.4] DBM : : 5 7 : Traversing Speed ( ft / min ) Minimum Distance H (in) Traversing Motorized Trolley Beam Range (in) Trolley Min. Radius (in) * * Net Wt DBM :.55 9 : 3 : 3 * If you require 6 button pendant control in place of 4 button, a "C" should be added to the end of the model name * The length of power cord 4core cable is 6' * Standard push button cord is ' less than lift * Contact the factory for special beam widths for motorized trolley * Special motorized trolleys can be supplied where the trolley minimum radius is the number bracketed off [39.4] 580 DIMENSIONS ( * the following measurements are metric ) MODEL A B C γ D E F G I J K M DAM-0.5/DBM β 5 +β 3 +β /76 6/87 8 DAM-0.5/DBM β 5 +β 3 +β /303 6/87 8 DAM-W/DBM-W 48 +β 5 +β 3 +β /303 6/87 8 DAM-S/DBM-S 48 +β 5 +β 3 +β /3 74/98 8 DAM-.5/DBM β 68 +β 48 +β /37 33/345 DAM-W/DBM-W 56 +β 68 +β 48 +β /3 74/98 DAM-S/DBM-S 56 +β 68 +β 48 +β /37 33/345 DAM-.5/DBM β 33 +β 5 +β /37 33/ DAM-3/DBM β 33 +β 5 +β /37 33/ DAM-5/DBM-5 6 +β 34 +β 70 +β /37 33/345 7 DAM-7.5 DAM- 6 +β 34 +β 70 +β /34 33/ /960 ) The dimensions D,E depends on the lift. ) For the dimensions β and γ, see page ) The dimension K is in case of that "Traversing I beam width" is minimum.

7 34 ELEPHANT LIFTING PRODUCTS ELECTRIC CHAIN BLOCK WITH GEARED TROLLEY push button type (DADB) For monorail 4 push button type (DADB) For crane push button type (DADB) For monorail 4 push button type (DADB) For crane Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included 50kg.5ton w5ton ton

8 Specifications Model 50Hz 60Hz DAG DAG DAG-W DAG-S DAG-.5 DAG-W DAG-S DAG DAG Test Load Standard Lift (ft) Lifting Motor Output (H.P.) (DB) High:Low Speed Lifting Speed (ft / min) (DB) High:Low Speed Trolley Traversing Distance on pulling 3' hand chain (in) Hand Chain Effort [approx.] (lbf) Minimum Distance H (in) Traversing Trolley Beam Range (in) Trolley Min. Radius (in) DAG DAG DAG x DBG : : 9 3 : DBG : : 8 8 : DBG-W 0.5. : 0.4 : 4 4 : DBG-S DBG-.5 DBG-W DBG-S : :.55.3 : :.55 : 7 9 : : 4 3 : 8 7 : 9 34 : 3 : 4 7 : DBG :.55 8 : 6 : Net Wt Call toll-free DBG :.55 4 : 5 7 : DBG :.55 9 : 3 : * Current ampere depends on the voltage and length of power cord * The length of power cord 4core cable is 6' * Standard push button cord is ' less than lift * If you require 6 button pendant control in place of 4 button, a "C" should be added to the end of the model name * Contact the factory for special trolley beam flange widths DIMENSIONS ( * the following measurements are metric ) MODEL DAG-0.5/DBG-0.5 DAG-0.5/DBG-0.5 DAG-W/DBG-W DAG-S/DBG-S DAG-.5/DBG-.5 DAG-W/DBG-W DAG-S/DBG-S DAG-.5/DBG-.5 DAG-3/DBG-3 DAG-5/DBG-5 DAG-7.5 DAG- A /596 +β B 8+ β 8+ β 3+ β 3+ β 36+ β 36+ β 36+ β 37+ β 37+ β 55+ β 55/48 +β C 6- β 6- β 6- β 6- β 44- β 44- β 44- β 48- β 48- β 66- β 68/68 -β γ ) The dimensions D,E depends on the lift. ) For the dimensions β and γ, see page ) The dimension K is in case of that "Traversing I beam width" is minimum. The specification and dimensions may be changed without prior notice for improvement. D E F G I 67/76 67/303 67/303 90/3 34/37 90/3 34/37 34/37 34/37 34/37 34 J 6/87 6/87 6/87 74/98 33/345 74/98 33/345 33/345 33/345 33/345 33/34 K M 793/960

36 ELECTRIC CHAIN BLOCK WITH PLAIN TROLLEY push button type

LIFTING PRODUCTS 4 push button type (DADB) For crane 4 push

Magnetic contactor and transformer are included.

included Option:Wiring box for saddle included 50kg.5ton w5ton

9 36 ELECTRIC CHAIN BLOCK WITH PLAIN TROLLEY push button type (DADB) For monorail push button type (DADB) For monorail ELEPHANT LIFTING PRODUCTS 4 push button type (DADB) For crane 4 push button type (DADB) For crane Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included Option:Wiring box for saddle Magnetic contactor and transformer are included. Operating voltage is 4V Power cord and operating cord are not included 50kg.5ton w5ton

10 Specifications Model Test Load Standard Lift (ft) Lifting Motor Output (H.P.) (DB) High:Low Speed DAP DAP DAP-W DAP-S DAP-.5 DAP-W DAP-S DAP Lifting Speed (ft / min) (DB) High:Low Speed DBP : : 9 3 : DBP : : 8 8 : DBP-W 0.5. : 0.4 : 4 4 : DBP-S DBP-.5 DBP-W DBP-S : :.55.3 : :.55 : 7 9 : : 4 3 : 8 7 : 9 34 : 3 : 4 7 : Hz DAP DAP DBP :.55 8 : 6 : Hz Minimum Distance H (in) Traversing Trolley Beam Range (in) Trolley Min. Radius (in) Net Wt DBP :.55 4 : 5 7 : DBP :.55 9 : 3 : 3 * Current ampere depends on the voltage and length of power cord * The length of power cord 4core cable is 6' * Standard push button cord is ' less than lift * If you require 6 button pendant control in place of 4 button, a "C" should be added to the end of the model name * Contact the factory for special trolley beam flange widths DIMENSIONS ( * the following measurements are metric ) MODEL A B C γ D E F G I J K DAP-0.5/DBP-0.5 +β 6- β /76 6/87 9 DAP-0.5/DBP-0.5 +β 6- β /303 6/87 9 DAP-W/DBP-W β 6- β /303 6/87 4 DAP-S/DBP-S β 6- β /3 74/98 4 DAP-.5/DBP β 44- β /37 33/ DAP-W/DBP-W β 44- β /3 74/98 34 DAP-S/DBP-S β 44- β /37 33/ DAP-.5/DBP β 48- β /37 33/345 4 DAP-3/DBP β 48- β /37 33/345 4 DAP-5/DBP β 66- β /37 33/ ) The dimensions D,E depends on the lift. ) For the dimensions β and γ, see page ) The dimension K is in case of that "Traversing I beam width" is minimum. The specification and dimensions may be changed without prior notice for improvement.

11 Combination of Electric Trolleys with Traversing Rails 38 ELEPHANT LIFTING PRODUCTS Trolley model (ton) (number of falls) Min. I-beam width (C) Combination of Plain/Geared Trolley with Traversing Ralis Rails Trolley model (ton) (number of falls) I-beam HBtt I-beam HBtt Min. I-beam width (C) For understanding the descriptions at the upper row of the Table:. As for the rails belonging to the blue indicated zone, the standard type trolleys can be fitted to each of them.. As for the rails belonging to the gray-indicated zone, such trolleys as having special dimensions to meet them must be prepared separately. For understanding the descriptions at the medium row of the Table: Each of the figures indicated at this row shows the distance [a](unit:mm) of the sketch at right side. This distance [a] may be zero or negative depending on the combination of the standard trolley with some types of rails: for this case, no figure is given here because such combination can't be put in actual application. In the case of the combination indicated with a blue figure, the trolley's top is higher than the rali's top so that the torlley may touch the ceiling suspending the rail (HK):pay attention to this. For understanding the descriptions at the lower row of the Table: Each of the figures indicated at this row shows the distance [b](unit:mm) of the sketch at the right side. The distance [b] may be zero or negative depending on the combination of the standard trolley with some type of rails: for this case, no figure is given here because such combination can't be put in actual application. Also for the rails whose thickness t is too thin to hold the rated load, no figure is given. If there is even one blank at either of the upper, medium and lower rows of the Table, this means that such relevant rail can't be used to together with the trolleys. In this way, referring to the Table, you will see what type of rail(i beam) is suited to the trolley you have selected. Then it is needed to check if such rail satisfies the following condition: even if it is given a 5% of the rated safety load, its deflection amount shall be / of its support span or less. That is, the I beam to be selected shall have its moment of inertia of the longitudinal section (lx) be as follows: lx: Moment of inertia of the longitudinal logitudinal section 9.WL In which, W:.5+Chain block's own weight(ton) L: Support span(m) trolley's top B/4 (a) (c) (b)

12 continued from page For "Combination of Electric Trolleys with Traversing Rails", the following must be taken note of: At the medium row of the table: In the case of the combination indicated with a gray zone, the relation HK applies to both plain trolley and geared trolley. In the case of the combination indicated with a blue zone, the relation HK applies only to the geared trolley. The dimensions A, B, C of the trolley will vary with the change of the traversing rail's width to be used. The figure in the Table can be obtained from the following equation: =/x[width(mm) of the traversing rail-] NOTES ON THE WIRING DIAGRAM. Our electric chain blocks(with the trolleys included), either DA type or DB type, are usually designed to operate on the 3-phase power source. The electrical parts used for our chain blocks are all the precision ones which can normally operate even with an accidental voltage drop (with a % reduction of the rated voltage). As standard, our lifting motor (LM) and trolley motor (TM) are respectively assured of the following ratings. LM TM In the case of the DB type, however, its rating will be like: Short time duty High speed Low speed 30 minutes 5 minutes Kind of Insulation E E Short time duty 30 minutes 5 minutes Intermittent duty 40% ED, Number of starts : 40/h 5% ED, Number of starts : 40/h Intermittent duty High speed Low speed 40% ED, Number of starts : 40/h % ED, Number of starts : /h 39 Call toll-free As to the 4-core power cord, or the 7-core cabtyre cord used for the DAGC, DBGC, DAPC or DBPC type, they are each usually of 5m in length. The cords of other length than the above, or of special dimensions, are available upon request. 4. When connecting the power cord to the power source, take care of its correct phase so that the lifting motor can rotate in UP direction and DN direction according to the push of the UP button and DN button on the control switch. If the connection phase is reversed, the negative phase protector starts to work to prevent the lifting motor from rotating in either direction. If this occurs, exchange the connection phase of the black and red leads from each other: at the time, avoid changing the wire connections in the control switch, chain block and trolley. 5. The running direction of the electric trolley and/or the saddle has been decided at the shipment, and it may be changed, at your site, by changing the wire connection at the control switch case. HOIST CLASSIFICATION JIS/ISO classification FEM classification ASME classification International protection DA M5 m H3 IP54 DB M5 m H3 IP54 The specification and dimensions may be changed without prior notice for improvement.

13 DEFINITION OF WORDS 40 Lift and Length of Pushbutton Switch Cord Traversing, Traveling with Trolley and Saddle. Short Time Duty Rating and Intermittent Duty Rating ELEPHANT LIFTING PRODUCTS As the electric chain block is operated, its bottom hook moves up and down and the longest distance of this motion is called a "lift". In other words, the lift refers to the distance between the bottom hook's highest position (with the upper limit switch actuated) and its lowest positon (with the lower limit switch actuated). The length of the pushbutton switch cord refers to the distance between the bottom of dimension L and the lower surface of the pushbutton switch case. Pushbutton cord length L upper limit positon Lift The electric chain block, while hoisting any of loads, may be moved in lateral or longitudinal direction when used in combination with a trolley or saddles which is fitted on a rail. Usually, the trolley is used for a lateral motion of the electric chain block and saddles for a longitudinal motion of it. And when the chain block moves laterally, we call it as "traversing" and when it moves longitudinally, we call it "traveling". Depending on your job requirements, the ELEPHANT electric chain blocks may be combined with different types of saddles of our own; refer to our catalog "ELEPHANT Electric Saddles". Saddle Traversing Saddle Traveling As a criterion to indicate the strength and durability of our electric chain blocks. We have specified the ratings of the short time duty and intermittent duty concerning their included electric motors-see the page of catalogs. Short Time Duty Rating "Short time duty rating" means the limited time that the admissible temperature limit of its electric motor won't be exceeded, when the electric chain block is operated continuously on the below cycle. m lift 3 sec. rest Tested by cycle m lower 3 sec. rest Intermittent Duty Rating Compared with "short time duty rating", the temperature of motor rises gradually by properly giving rests to the chain block between its operating periods (lifting and lowering). The percentage duty cycle ED is found as follows. Operating periods(t+t3) %ED= 0 Operating + Rest periods(t) based on the maximum cycle period of minutes. The number of starts/h also affects the rise of temperature. Thus these two factors are specified to show the intermittent duty rating of the electric chain block under the specification of which the electric motor can be operated safely without exceeding its admissible temperature limit. rest lift lower rest t t t 3 t 4 T( cycle)(maximumminutes) Tested by 63% of Lower limit positon The specification and dimensions may be changed without prior notice for improvement.

14 HOOK DIMENSIONS BOTTOM HOOK WEIGHT LOAD CHAIN WEIGHT (Applicable to both top & bottom hooks) Reading of Model/Code DA-0.5 DBP-3 DAG- S DAMC- W Typical Examples To show the number of falls To show the rated load capactiy(ton) To show the class of each model Class code: It identifies the type (single speed or dual speed type), the number of buttons on the control switches and kinds of trolleys (electric, geared or plain). See the sketches at right. Rated load capacity: It shows the rated load capacity(ton) of the relevant chain block. Number of falls: It Identifies whether the relevant chain block is the -fall type or the -fall type block(s=, W=). Note: Indication of the number of falls is omitted for certain model in the case where it has been specified according to its rated load capactiy. Max working load & number of falls S W. 5 S W. 5 DIMENSION (in) A B C D E Bottom hook weight No. of fall load chain Load chain Per weight Per 3. lift Hooks are produced through a hot forging process and so the dimensions may have some errors : ± 3% for the 7.5 and/or t hook. Class Code S W ± % for 0.5 5t hook and Usually the pushbuttons located on the control switch are labeled as "UP", "DN", "L", "R", "E", "W", "S" and "N". The other types of labeling are avaliable upon request. In the case of the dual speed type (DB type), the chain block can be wound UP and DOWN at either high speed or low speed. The UP and Down buttons are each of push-push type: at the first push, it provided low speed operation and at the second push, it provides high speed operation. 4

ELECTRIC CHAIN HOIST DA TYPE 1 SPEED, 3 PHASE SINGLE VOLTAGE & DB TYPE 2 SPEED, 3 PHASE SINGLE VOLTAGE

ELECTRIC CHAIN HOIST DA TYPE 1 SPEED, 3 PHASE SINGLE VOLTAGE & DB TYPE 2 SPEED, 3 PHASE SINGLE VOLTAGE ELECTRIC CHAIN HOIST DA TYPE SPEED, 3 PHASE SINGLE VOLTAGE & DB TYPE 2 SPEED, 3 PHASE SINGLE VOLTAGE 38 WWW.ELEPHANTLIFTING.COM Features of the DA/DB Electric Cha Hoist An efficient motor that offers high