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 lift speeds The DA/DB series hoist features a newly developed motor for severe conditions, which allows it to operate contuously for long periods of time with frequent starts with an hour cycle. These liftg speeds were engeered to be as fast as possible to ensure efficiency. Quiet operation with a sealed protective body agast dust Durable helical gears & an oil bath style gear case make these units quiet durg operation. Solid steel side plates for a rugged heavy duty construction Highly durable load cha Our surface hardened load cha is manufactured with our factory Osaka, and is compliance with ISO standard grade T, offerg a satisfactory degree of breakg strength, wear resistance, and impact absorption. We can also offer load cha of a higher corrosion resistance upon request. Safe DOUBLE BRAKE design A mechanical brake and motor brake the electricmagnetic brake is combed with a mechanical brake to constitute a complete double brake system. Even the former alone has enough capacity to hold a static safe workg 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 cha hoist. A safer cha guide with our unique design The DA/DB series is designed so that the cha guide s rotation on the load sheave transmits to the electrical limit switch. The electric limit switch automatically stops the operation of the hoist the event that the load cha is raised or lowered to the cha s end. In this case, the limit switch would also engage if dust or foreign matters rema pressed with the pockets of the load sheave. Reliable double-action limit switch Electrical limit switch for this model acts two steps. In the first step the limit switch breaks the operatg circuit. Then with the second step, the limit switch breaks the ma circuit. Ensurg the hoist ceases operation. Negative phase contactor and a highly efficient magnetic contact with a mechanical & electrical terlock Motor frame The motor frame is constructed with high quality alumum coolg fs which help reduce the rise of temperature with the motor Durable cha contaer Pendant control switch is set at 24v 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 the event of an overload. A compact thrust bearg also helps to prevent the load cha from twistg. Ratgs JIS / ISO M5, FEM 2M, ASME H3 Motor, IP54 Hoist Protection, IP65 NEMA 4X Pendant Protection TOLL-FREE.888.844.63 39
250kg~2.5ton w~5ton 0ton 40 WWW.ELEPHANTLIFTING.COM
SPECIFICATIONS SPECIFICATIONS - DA/DB HEAVY - DUTY DA/DB ELECTRIC HEAVY CHAIN DUTY HOIST ELECTRIC CHAIN HOIST Load Load Cha Test W.L.L. W.L.L. W.L.L. W.L.L. Test Load Standard Standard Dia Dia (mm) x Model Model Load (lbs) (lbs) (mt) (mt) (mt) (mt) Lift (ft) Li( (() Number of Falls Falls Liftg Li(g Motor Motor Li(g Liftg Speed Speed (( / m) (ft/m) (DB) Net Wt. Output (H.P.) (H.P.) (DB) High:Low High:Low Speed Speed Mimum Net Wt. Ampere Distance H H Ampere (A) (lbs) (lbs) (DB) (DB) High:Low High: (A) () Low Speed Speed 50Hz 50Hz 60Hz 60Hz 0' : ' () 0' : ' DA-0.25 DA- 0.25 DA-0.5 DA- 0.5 550 550 0.25 0.25 0.33 0.33 00 00 0.5 0.5 0.625 0.625 5.6 5.6 x x 6.3 6.3 x x 0.68.22 26 26 24 24 3 3 28 28.4.4.8.8 2.5 2.5 4.5 4.5 2 2 : 6 : 6 23 23 : 30 : 30 DA-W DA- W 20 20.25.25 6.3 6.3 x x 2 2.22-0.4.22-0.4 2 2 4 4 27.7 27.7 4.5 4.5 39 39 : 52 : 52 DA-S DA- S 20 20.25.25 7. 7. x x 2.3 22 22 27 27 23 23 8.7 8.7 58 58 : 68 : 68 DA-.5 DA-.5 3500 3500.5.5.88.88 9.5 9.5 x x 4.62 4.62 29 29 34 34 28.7 28.7 5.3 5.3 265 265 : 280 : 280 DA-2W DA- 2W 4400 4400 2 2 2.5 2.5 7. 7. x 2x 2 2.3 2.3 3 3 3 3 8.7 8.7 85 85 : : DA-2S DA- 2S 4400 4400 2 2 2.5 2.5.2.2 x x 4.62 4.62 23 23 27 27 28.7 28.7 5.3 5.3 273 273 : 293 : 293 DA- 2.5 5500 DA-2.5 5500 2.5 2.5 3.3 3.3 0 0.2 x.2 x 4.62 4.62 8 8 2 2 28.7 28.7 5.3 5.3 282 282 DA- 3 6600 3 3.75 0 9.5 x 2 4.62 4 7 37 5.3 3 DA-3 6600 3 3.75 0 9.5 x 2 4.62 4 7 37 5.3 3 DA- 5 000 5 6.25 0.2 x 2 4.62 9 40.5 5.3 359 DA-5 000 5 6.25 0.2 x 2 4.62 9 40.5 5.3 359 DA- 0 200 0 2.5 0.2 x 4 4.62 x 2 9 0 54.7 5.3 873 DA-0 DB- 0.25200 550 0 0.25 2.50.33.25.6 x x 4 0.68 4.62 : 0.23 x 2 26 : 9 3 : 0.4 54.7 2.65.3 23 : 873 30 DB-0.25 DB- 0.5 55000 0.250.5 0.33 0.625 5.6 6.3 x x.22 0.68 : 0.4 : 0.23 2426 : 8 : 9 283 : 9: 0.8.4 4.72.6 3723 : 46 : 30 DB-0.5 DB- W 00 20 0.5 0.625.25 6.3 6.3 x x 2.22 : : 0.4 224 : 4 : 8 428 : 5: 9 27.7.8 4.7 4.7 5237 : 68 : 46 DB-W DB- S 20 20.25.25 6.37. x x 2 2.3.22 : 0.77 : 0.4 22 2 : 7: 4 274 : 9: 5 23 27.7 9.24.7 7452 : 85 : 68 DB-S DB-.5 20 3500 DB-.5 DB- 2W 3500 4400.5.5 2.25.88.882.5 7. 9.5 x x 9.5 7. x x 2 4.62 2.3 : :.55 0.77 2.3 4.62 : 0.77 :.55 29 : 22 0: 7 29 : 4: 0 34 27 : : 9 334 : 4: 28.7 23 3 28.7 69.2 9.26 30074 : 37 : 85 3 300 : 2 : 37 DB-2W DB- 2S 4400 4400 2 2 2.5 2.5 7..2 x 2x 4.62 2.3 : :.55 0.77 23 : 8 : 4 273 : 9: 4 28.7 3 69.2 3 3 : 33 : 2 DB- 2.5 5500 2.5 3.3.2 x 4.62 :.55 8 : 6 2 : 7 28.7 6 37 DB-2S 4400 2 2.5.2 x 4.62 :.55 23 : 8 27 : 9 28.7 6 3 : 33 DB- 3 6600 3 3.75 0 9.5 x 2 4.62 :.55 4 : 5 7 : 6 37 6 357 DB-2.5 5500 2.5 3.3 0.2 x 4.62 :.55 8 : 6 2 : 7 28.7 6 37 DB- 5 000 5 6.25 0.2 x 2 4.62 :.55 9 : 3 : 3 40.5 6 394 DB-3 * Current Ampere 6600 Depends 3 on 3.75 the Voltage 0and Length 9.5 of x 2Power Cord 4.62 :.55 * The Length of Power Cord 4Core Cable is 6' 4 : 5 7 : 6 37 6 357 DB-5 * Standard 000 Push BuDon 5 Cord 6.25 is 2' Less than 0 LiE.2 x 2 4.62 :.55 9 : 3 : 3 40.5 6 394 * Current * If You Require Ampere 6 Depends BuDon Pendant on the Control Voltage and Place Length of 4 BuDon, of Power a "C" Cord Should be Added to the End of the Model Name * The Length of Power Cord 4Core Cable is 6' * Standard Push Button Cord is 2' Less than Lift * If You Require 6 Button Pendant Control Place of 4 Button, a "C" Should be Added to the End of the Model Name DIMENSIONS (IN.) - DA/DB HEAVY DUTY ELECTRIC CHAIN HOIST Model A B C D E F DA / DB-0.25.7 / 22. 0.5 / 0.8 0.2 /.3 0.8 6.6 4.2 DA / DB-0.5.7 / 23.2 0.5 /.9 0.2 /.3 0.8 6.6 4.2 DA / DB-W.7 / 23.2 0.5 /.9 0.2 /.3 0.8 8. 2.6 DA / DB-S 22.2 / 24.3.4 / 2.6 0.7 /.7.8 6.8 5 DA / DB-.5 25.7 / 28.2 3.4 / 4.6 2.3 / 3.5 4.6 7.8 6.8 DA / DB-2W 22.2 / 24.3.4 / 2.6 0.7 /.7.8 8.6 3.2 DA / DB-2S 25.7 / 28.2 3.4 / 4.6 2.3 / 3.5 4.6 7.8 6.8 DA / DB-2.5 25.7 / 28.2 3.4 / 4.6 2.3 / 3.5 4.6 7.8 6.8 DA / DB-3 25.7 / 28.2 3.4 / 4.6 2.3 / 3.5 4.6 0. 4.4 DA / DB-5 25.7 / 28.2 3.4 / 4.6 2.3 / 3.5 4.7 0.7 4.02 DA-0 26.9 3.4 3.4 37.8 0.7 * * The Dimensions D and E Depends on the Lift * For Top and Bottom Hook Specifications See Page 47 * Specifications and Dimensions are Subject to Change Without Notice TOLL-FREE.888.844.63 4
42 WWW.ELEPHANTLIFTING.COM
Model W.L.L. (lbs) W.L.L. (mt) DAM-0.25 550 0.25 0.33 DAM-0.5 00 0.5 0.625 DAM-W 20.25 DAM-S 20.25 DAM-.5 3500.5.88 DAM-2W 4400 2 2.5 DAM-2S 4400 2 2.5 SPECIFICATIONS - DAM/DBM HEAVY DUTY ELECTRIC CHAIN HOIST Test Standard Load Lift (ft) (mt) 0 0 0 0 0 0 0 Liftg Motor Output (H.P.) (DB) High:Low Speed 0.68 DAM-2.5 5500 2.5 3.3 0 4.62 Traversg Motorized Trolley Motor Output (H.P.) Liftg Speed (ft/m) (DB) High:Low Speed 50Hz 60Hz 26 3 Traversg Speed (ft/m) High Speed 50 Hz / 60 Hz Low Speed 50 Hz / 60 Hz Mimum Distance H () Traversg Motorized Trolley Beam Range () Trolley M. Radius ().22 24 28 22.8 65 43.3 2.95-5.9 [3.4].22 2 4 29. 3 2.3 0.54 22 27 24.4 223 4.62 29 34 30.7 434 59 2.3 3 3.2 [3.4] 273 65 / 78 33 / 39 4.62 23 27 28.9 3.94-5.9 434 22.4 Net Wt. ( l b s) 59 8 2 29.5 [39.4] 423 DAM-3 6600 3 3.75 0 4.62.02 4 7 37.8 46 6 DAM-5 000 5 6.25 0 4.62 9 4.3 73.7 [39.4] 542 DAM-7.5 6500 7.5 9.38 0 4.62 6 7 47.4 5.00-7.00 * 058.02 x 2 DAM-0 200 0 2.5 0 4.62 x 2 9 0 46.6 * 365 DBM-0.25 550 0.25 0.33 0 0.68 : 0.23 26 : 9 3 : 0 22.4 92 0 DBM-0.5 00 0.5 0.625.22 : 0.4 24 : 8 28 : 9 22.8 43.3 2.95-4.92 0 [39.4] DBM-W 20.25.22 : 0.4 2 : 4 4 : 5 29. 245 DBM-S 20.25 0 2.3 : 0.77 0.54 22 : 7 27 : 9 24.4 267 0 DBM-.5 3500.5.88 4.62 :.55 29 : 0 34 : 30.7 470 65 / 78 33 / 39 59 0 DBM-2W 4400 2 2.5 2.3 : 0.77 : 4 3 : 4 3.2 [3.4] 37 DBM-2S 4400 2 2.5 0 4.62 :.55 23 : 8 27 : 9 28.9 3.94-5.9 478 DBM-2.5 5500 2.5 3.3 0 4.62 :.55 8 : 6 2 : 7 29.5 59 [39.4] 46 DBM-3 6600 3 3.75 0 4.62 :.55.02 4 : 5 7 : 6 37.8 498 DBM-5 000 5 6.25 0 4.62 :.55 9 : 3 : 3 4.3 4.92-6.89 * If You Require 6 Button Pendant Control 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 2' Less than Lift * Contact the Factory for Special Beam Widths for Motorized Trolley * Special Motorized Trolleys Can be Supplied where the Trolley Mimum Radius is the Number Bracketed Off 78.7 [39.4] 580 DIMENSIONS (IN.) - DAM/DBM HEAVY DUTY ELECTRIC CHAIN HOIST MODEL A B C γ D E F G I J K M DAM / DMB-0.25 9.0+2ß 9.8+ß 9.0+ß 2.9 6.6 4.3 9.5 4.7 0.5 / 0.9 0.3 /.3 4.3 - DAM / DMB-0.5 9.0+2ß 9.8+ß 9.0+ß 2.9 6.6 4.3 9.5 4.7 0.5 /.0 0.3 /.3 4.3 - DAM / DMB-W 9.0+2ß 9.8+ß 9.0+ß 2.9 8. 2.7 9.5 4.7 0.5 /.0 0.3 /.3 4.3 - DAM / DMB-S 9.0+2ß 9.8+ß 9.0+ß 2.9 6.8 5 9.5 4.7.4 / 2.5 0.8 /.7 4.3 - DAM / DMB-.5.0+2ß 0.5+ß 9.7+ß 3.9 7.8 6.9.3 5.8 3.5 / 4.6 2.3 / 3.6 4.8 - DAM / DMB-2W.0+2ß 0.5+ß 9.7+ß 3.9 8.6 3.2.3 5.8.4 / 2.5 0.8 /.7 4.8 - DAM / DMB-2S.0+2ß 0.5+ß 9.7+ß 3.9 7.7 6.9.3 5.8 3.5 / 4.6 2.3 / 3.6 4.8 - DAM / DMB-2.5 22.5+2ß 2.7+ß 9.8+ß 3.9 7.7 6.9 2.4 6.3 3.5 / 4.6 2.3 / 3.6 6.6 - DAM / DMB-3 22.5+2ß 2.7+ß 9.8+ß 3.9 0.2 4.5 2.4 6.3 3.5 / 4.6 2.3 / 3.6 6.6 - DAM / DMB-5 24+2ß 3.4+ß 3.4+ß 4.9 0.7 4 3.2 6.7 3.5 / 4.6 2.3 / 3.6 6.8 - DAM-7.5 & DAM-0 24+2ß 3.4+ß 3.4+ß 4.9 - - 27.4 4.2 3.5 / 4.6 2.3 / 3.5 6.8 3.4 & 37.8 * The Dimensions D and E Depend on the Lift * For the Dimensions ß and γ, see page 40 * The Dimension K is case that Traversg I Beam Width is Mimum TOLL-FREE.888.844.63 43
COMBINATION OF ELECTRIC TROLLEYS WITH TRAVERSING RAILS Trolley model W.L.L.(ton) (number of falls) I-beam H B tt M. I-beam width (C) For understandg the descriptions at the upper row of the Table:. As for the rails belongg to the blue dicated zone, the standard type trolleys can be fitted to each of them. 2. As for the rails belongg to the gray-dicated zone, such trolleys as havg special dimensions to meet them must be prepared separately. For understandg the descriptions at the medium row of the Table: Each of the figures dicated at this row shows the distance [a](unit:mm) of the sketch at right side. This distance [a] may be zero or negative dependg on the combation of the standard trolley with some types of rails: for this case, no figure is given here because such combation can't be put actual application. trolley's top B/4 In the case of the combation dicated with a blue figure, the trolley's top is higher than the rali's top so that the torlley may touch the ceilg suspendg the rail (H K):pay attention to this. For understandg the descriptions at the lower row of the Table: Each of the figures dicated at this row shows the distance [b](unit:mm) of the sketch at the right side. The distance [b] may be zero or negative dependg on the combation of the standard trolley with some type of rails: for this case, no figure is given here because such combation can't be put actual application. Also for the rails whose thickness t2 is too th 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, referrg 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 followg condition: even if it is given a 25% of the rated safety load, its deflection amount shall be /0 of its support span or less. That is, the I beam to be selected shall have its moment of ertia of the longitudal section (lx) be as follows: lx: Moment of ertia of the logitudal section 9. W L 2 In which, W: W.L.L..25+Cha block's own weight(ton) L: Support span(m) contued from page For "Combation of Electric Trolleys with Traversg Rails", the followg must be taken note of: At the medium row of the table: In the case of the combation dicated with a gray zone, the relation H K applies to both pla trolley and geared trolley. In the case of the combation dicated with a blue zone, the relation H K applies only to the geared trolley. (a) (c) (b) 44 WWW.ELEPHANTLIFTING.COM
NOTES ON THE WIRING DIAGRAM. Our electric cha blocks(with the trolleys cluded), either DA type or DB type, are usually designed to operate on the 3-phase power source. The electrical parts used for our cha blocks are all the precision ones which can normally operate even with an accidental voltage drop (with a 0% reduction of the rated voltage) 2. As standard, our liftg motor (LM) and trolley motor (TM) are respectively assured of the followg ratgs. Kd of Insulation Short time duty Intermittent duty LM E 30 mutes 40% ED, Number of starts : 240/h TM E 5 mutes 25% ED, Number of starts : 240/h In the case of the DB type, however, its ratg will be like: Short time duty High speed Low speed 30 mutes 5 mutes Intermittent duty High speed Low speed 40% ED, Number of starts : 240/h % ED, Number of starts : /h 3. 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 length. The cords of other length than the above, or of special dimensions, are available upon request. 4. When connectg the power cord to the power source, take care of its correct phase so that the liftg motor can rotate UP direction and DN direction accordg 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 liftg motor from rotatg either direction. If this occurs, exchange the connection phase of the black and red leads from each other: at the time, avoid changg the wire connections the control switch, cha block and trolley. 5. The runng direction of the electric trolley and/or the saddle has been decided at the shipment, and it may be changed, at your site, by changg the wire connection at the control switch case. HOIST CLASSIFICATION JIS/ISO classification FEM classification ASME classification International protection DA M5 2m H3 IP54 DB M5 2m H3 IP54 TOLL-FREE.888.844.63 45
DEFINITION OF WORDS Lift and Length of Pushbutton Switch Cord Traversg, Travelg with Trolley and Saddle. Short Time Duty Ratg and Intermittent Duty Ratg As the electric cha 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. The electric cha block, while hoistg any of loads, may be moved lateral or longitudal direction when used combation with a trolley or saddles which is fitted on a rail. Usually, the trolley is used for a lateral motion of the electric cha block and saddles for a longitudal motion of it. And when the cha block moves laterally, we call it as "traversg" and when it moves longitudally, we call it "travelg". Dependg on your job requirements, the ELEPHANT electric cha blocks may be combed with different types of saddles of our own; refer to our catalog "ELEPHANT Electric Saddles". As a criterion to dicate the strength and durability of our electric cha blocks. We have specified the ratgs of the short time duty and termittent duty concerng their cluded electric motors-see the page 2 of catalogs. Short Time Duty Ratg "Short time duty ratg" means the limited time that the admissible temperature limit of its electric motor won't be exceeded, when the electric cha block is operated contuously on the below cycle. 3 sec. rest Pushbutton cord length L upper limit positon Lift Saddle Traversg Saddle Travelg m lift Tested by W.L.L. cycle m lower 3 sec. rest Intermittent Duty Ratg Compared with "short time duty ratg", the temperature of motor rises gradually by properly givg rests to the cha block between its operatg periods (liftg and lowerg). The percentage duty cycle ED is found as follows. Operatg periods(t+t3) %ED= 00 Operatg + Rest periods(t) based on the maximum cycle period of 0 mutes. The number of starts/h also affects the rise of temperature. Thus these two factors are specified to show the termittent duty ratg of the electric cha block under the specification of which the electric motor can be operated safely without exceedg its admissible temperature limit. rest lift lower rest t t 2 t 3 t 4 T( cycle)(maximum0mutes) Tested by 63% of W.L.L. Lower limit positon The specification and dimensions may be changed without prior notice for improvement. 46 WWW.ELEPHANTLIFTING.COM
HOOK DIMENSIONS BOTTOM HOOK WEIGHT LOAD CHAIN WEIGHT (Applicable to both top & bottom hooks) Max workg load (mt) & number of falls 0.25 DIMENSION () Bottom hook weight (lbs) No. of fall load cha Load cha weight (lbs) A B C D E Per 3.2 Per 3.2 lift 2.9.59.0.3.7.5.4 0. 4 9 3.3.55.0.69.7.7.89 0. 5 Hooks are produced through a hot forgg process and so the dimensions may have some errors : ± 3% for the 7.5 and/or 0t hook. S 3.7 2.4 4.05.59.8.96.98 W 8 2.89 3.79. 5 5.3.0.45 2.55.37 7.7 4.3 2 S 7.7 5.8 5.3.0.45 2.55.37 2 W 2 2 2.4 4.85 2. 5 5.3.0.45 2.55.37 7.7 5.86 2S 6.49.37.88 2.36.9 25 2 4.3 8.6 2W 7.2.37 2.28 2.75 2.08 39 2 5.86.75 7. 5 9.0.88 2.8 3.3 2.48 43 3 5.86 ± 2% for 0.25 5t hook and 0 9.0.88 2.8 3.3 2.48 76 4 5.86 7.6 23.5 Readg of Model/Code DA-0.25 DBP-3 DAG-2 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 (sgle speed or dual speed type), the number of buttons on the control switches and kds of trolleys (electric, geared or pla). See the sketches at right. Rated load capacity: It shows the rated load capacity(ton) of the relevant cha block. Number of falls: It Identifies whether the relevant cha block is the -fall type or the 2-fall type block(s=, W=2). Note: Indication of the number of falls is omitted for certa model the case where it has been specified accordg to its rated load capactiy. Class Code Usually the pushbuttons located on the control switch are labeled as "UP", "DN", "L", "R", "E", "W", "S" and "N". The other types of labelg are avaliable upon request. In the case of the dual speed type (DB type), the cha 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. The specification and dimensions may be changed without prior notice for improvement. TOLL-FREE.888.844.63 47