- Available for machine screw jacks
- Available for metric (trapezoidal) jacks
- Limits lifting screw endplay
- Anti-backlash Devices
1-800-523-5204 or 1-937-294-6261
Joyce Machine Screw ComDRIVEs combine a machine screw jack, motor and gear reducer into a single compact unit. Motorized ComDRIVEs are available in 2-ton through 30-ton capacities with travel speeds up to 35.1 inches per minute. ComDRIVEs with single lead screws (CD) are self-locking; those with double lead screws (DCD) may require a brake to hold position.
Parts list and exploded views are included in the O&M Manual. A serial number is attached to the product housing.
![]() Anti-backlash Devices
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![]() ComDRIVE Options
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![]() Encoders
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![]() Finishes
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![]() Follower Nuts
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![]() Input Shaft (worm)
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![]() Limit Switches
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![]() Lubrication
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![]() Machine Screws
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![]() Mechanical Counters
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![]() Potentiometers
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![]() Protective Boots
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![]() Screw Stops
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![]() Thrust Rings
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![]() Wormgear Sets
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Click on the part number to reveal additional informaton about jack designs and shaft codes.
2-Ton | 3-Ton | 5-Ton | 10-Ton | 15-Ton | 20-Ton | 25-Ton | 30-Ton |
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CD62 CD122 CD242 |
CD63 CD123 CD243 |
CD65 CD125 CD245 |
CD810 CD2410 |
CD815 CD2415 |
CD820 CD2420 |
CD1125 CD3225 |
CD1130 CD3230 |
DCD62* DCD122* DCD242* |
DCD63* DCD123* DCD243* |
DCD65* DCD125* DCD245* |
DCD810* DCD2410* |
DCD815* DCD2415* |
DCD820* DCD2420* |
DCD1125* DCD3225* |
DCD1130* DCD3230* |
Important Note: *Not self-locking, may lower under load. Brake motors or external locking systems are recommended.
DCD: Double lead screw.
(For 25:1 ratio, contact Joyce/Dayton.)
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U=Upright |
I=Inverted |
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1=T1 |
2=T2 |
3=T3 |
4=T4 |
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S=Translating |
K=Keyed for Non Rotation |
N=Traveling Nut |
D=Double Clevis |
R=KFTN Trunnion* |
* Standard trunnion mounts available on 2-ton through 20-ton jacks.
Rise is travel expressed in inches and not the actual screw length. When companion jacks are ordered with the ComDRIVE®, their screws are lengthened to match the ComDRIVE®.
Left Side Shaft Code |
Right Side Shaft Code |
XXXX=Remove |
XXXX=Remove |
Extending and retracting screw stops are standard on ComDRIVEs. When boots are added to ComDRIVEs, the closed height of the unit may be increased.
CNT0=0.001" Increments
Note: Contact Joyce/Dayton for availability and options.
POTA=0-10V (IP65)
POTB=4-20MA (IP65)
POTC=0-10V w/2 switches*
POTD=4-20MA w/2 switches*
*Optional IP65 rating available
ENCX=Encoder
ELS2=2 Position Electronic Switch
ELS4=4 Position Electronic Switch
ELS6=6 Position Electronic Switch
Ordering Example:
P2 (Mounting Positions) A (Ratio) C (Motor code from chart above)
Mounting Positions | ||||
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Code | P1 | P2 | P3 | P4 |
Left Side Shaft Options |
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Right Side Shaft Options |
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Ratio |
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5:1 Code A |
7.5:1 Code B |
10:1 Code C |
Motors | |
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Size | Code |
1/4 HP | K |
1/3 HP | A |
1/2 HP | B |
3/4 HP | C |
1 HP | D |
1-1/2 HP | E |
2 HP | F |
3 HP | L |
5 HP | G |
7-1/2 HP | H |
10 HP | I |
15 HP | J |
All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available including international voltages, and single phase AC. Specify the appropriate motor size from the chart above. Refer to the “Additional Options” chart on the preceding page as needed. Brake motors are required for ball screw ComDRIVEs®. Contact Joyce/Dayton for other options.
Ordering Example:
LA (Models) 1(Number of DPDT Switches) 3(Available Positions)
Model | Code | Available Positions | |||||||||
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LS7-402 | LI |
Number of DPDT Switches NOTE: Will always be 0 for LS7 models |
1 | 2* | 3 | 4 | 5 | 6* | 7 | 8 | |
LS8-402 | LA | Left Side Shaft Options | ![]() |
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LS8-504 | LB | ||||||||||
LS9-502 | LC | ||||||||||
LS9-503 | LD | Right Side Shaft Options | ![]() |
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LS9-504 | LE | ||||||||||
LS9-505 | LF | ||||||||||
LS9-506 | LG |
These positions are not standard. Contact Joyce/Dayton with your requirements. |
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LS9-507 | LH |
2 Ton Model Number | CD62 | CD122 | CD242 | DCD62 | DCD122 | DCD242 | ||||||||||
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Reducer Ratio | 5 | 7 1/2 | 10 | 5 | 7 1/2 | 5 | 7 1/2 | 10 | 5 | 7 1/2 | 10 | 7 1/2 | 5 | 7 1/2 | 10 | |
Travel Speed IPM | 13.88 | 9.50 | 7.04 | 6.94 | 4.75 | 3.47 | 2.38 | 1.76 | 27.75 | 19.00 | 14.08 | 9.50 | 6.94 | 4.75 | 3.52 | |
Lifting Capacity (Lbs.) |
1/3 HP | 1,865 | 2,650 | 3,500 | 3,350 | 4,000 | 4,000 | 4,000 | 4,000 | 1,300 | 1,850 | 2,450 | 3,300 | 3,830 | 4,000 | 4,000 |
1/2 HP | 2,875 | 4,000 | 4,000 | 4,000 | 2,000 | 2,825 | 3,720 | 4,000 | 4,000 | |||||||
3/4 HP | 4,000 | 3,060 | 4,000 |
3 Ton Model Number | CD63 | CD123 | CD243 | DCD63 | DCD123 | DCD243 | ||||||||||
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Reducer Ratio | 5 | 7 1/2 | 10 | 5 | 7 1/2 | 5 | 7 1/2 | 10 | 5 | 7 1/2 | 10 | 7 1/2 | 5 | 7 1/2 | 10 | |
Travel Speed IPM | 13.88 | 9.50 | 7.04 | 6.94 | 4.75 | 3.47 | 2.38 | 1.76 | 27.75 | 19.00 | 14.08 | 9.50 | 6.94 | 4.75 | 3.52 | |
Lifting Capacity (Lbs.) |
1/3 HP | 1,910 | 2,700 | 3,555 | 3,425 | 4,790 | 5,610 | 6,000 | 6,000 | 1,335 | 1,890 | 2,485 | 3,350 | 3,925 | 5,415 | 6,000 |
1/2 HP | 2,920 | 4,095 | 5,380 | 5,235 | 6,000 | 6,000 | 2,045 | 2,865 | 3,765 | 5,085 | 6,000 | 6,000 | ||||
3/4 HP | 4,430 | 6,000 | 6,000 | 3,100 | 4,340 | 6,000 |
5 Ton Model Number | CD65 | CD125 | CD245 | DCD65 | DCD125 | DCD245 | |||
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Reducer Ratio | 5 | 10 | 10 | 10 | 5 | 10 | 10 | 10 | |
Travel Speed IPM | 20.81 | 10.56 | 5.28 | 2.64 | 27.75 | 14.08 | 7.04 | 3.52 | |
Lifting Capacity, Lbs. |
1 HP | 3,760 | 6,980 | 10,000 | 10,000 | 3,320 | 6,170 | 10,000 | 10,000 |
1 1/2 HP | 5,755 | 5,085 | |||||||
2 HP | 7,750 | 6,845 |
10 Ton Model Number | CD810 | CD2410 | DCD810 | DCD2410 | |||||
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Reducer Ratio | 5 | 10 | 5 | 10 | 5 | 10 | 5 | 10 | |
Travel Speed IPM | 20.81 | 10.56 | 6.94 | 3.52 | 27.76 | 14.09 | 9.25 | 4.69 | |
Lifting Capacity, Lbs. |
1 HP | 3,680 | 7,070 | 9,000 | 16,760 | 3,150 | 6,045 | 7,700 | 14,330 |
1 1/2 HP | 5,760 | 14,090 | 4,925 | 12,050 | |||||
2 HP | 7,840 | 19,165 | 6,700 | 16,390 | |||||
3 HP | 12,150 | 20,000 | 20,000 | 20,000 | 10,385 | 19,450 | 20,000 | 20,000 | |
15 Ton Model Number | CD815 | CD2415 | DCD815 | DCD2415 | |||||
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Reducer Ratio | 5 | 10 | 5 | 10 | 5 | 10 | 5 | 10 | |
Travel Speed IPM | 20.81 | 10.56 | 6.94 | 3.52 | 27.76 | 14.09 | 9.25 | 4.69 | |
Lifting Capacity, Lbs. |
1 HP | 3,140 | 6,200 | 7,535 | 14,385 | 2,715 | 5,365 | 6,515 | 12,440 |
1 1/2 HP | 5,035 | 12,085 | 4,350 | 10,450 | |||||
2 HP | 6,925 | 16,620 | 5,990 | 14,375 | |||||
3 HP | 10,850 | 20,425 | 26,040 | 30,000 | 9,380 | 17,665 | 22,520 | 30,000 | |
5 HP | 18,515 | 30,000 | 16,010 | 30,000 |
20 Ton Model Number | CD820 | CD2420 | DCD820 | DCD2420 | |||||
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Reducer Ratio | 5 | 10 | 5 | 10 | 5 | 10 | 5 | 10 | |
Travel Speed IPM | 20.81 | 10.56 | 6.94 | 3.52 | 27.76 | 14.09 | 9.25 | 4.69 | |
Lifting Capacity, Lbs. |
1 HP | 2,715 | 5,570 | 6,520 | 12,920 | 2,265 | 4,645 | 5,435 | 10,765 |
1 1/2 HP | 4,475 | 10,745 | 3,730 | 8,960 | |||||
2 HP | 6,235 | 14,965 | 5,195 | 12,475 | |||||
3 HP | 9,880 | 18,785 | 23,715 | 40,000 | 8,235 | 15,660 | 19,770 | 36,300 | |
5 HP | 17,000 | 40,000 | 14,175 | 34,020 |
25 Ton Model Number | CD820 | CD2420 | DCD820 | DCD2420 | |||||
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Reducer Ratio | 5 | 10 | 5 | 10 | 5 | 10 | 5 | 10 | |
Travel Speed IPM | 20.79 | 10.55 | 6.93 | 3.52 | 35.12 | 17.82 | 11.71 | 5.94 | |
Lifting Capacity, Lbs. |
3 HP | 9,050 | 17,165 | 20,390 | 36,800 | 7,385 | 14,000 | 16,640 | 30,040 |
5 HP | 15,700 | 29,420 | 35,390 | 50,000 | 12,815 | 24,010 | 28,885 | 50,000 | |
7 1/2 HP | 23,930 | 45,755 | 50,000 | 19,530 | 37,340 | 44,010 | |||
10 HP | 32,625 | 50,000 | 26,625 | 50,000 | 50,000 | ||||
15 HP | 49,410 | 40,325 |
30 Ton Model Number | CD1130 | CD3230 | DCD1130 | DCD3230 | |||||
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Reducer Ratio | 5 | 10 | 5 | 10 | 5 | 10 | 5 | 10 | |
Travel Speed IPM | 20.82 | 10.57 | 6.94 | 3.52 | 35.12 | 17.82 | 11.71 | 5.94 | |
Lifting Capacity, Lbs. |
3 HP | 9,435 | 17,540 | 21,260 | 37,620 | 7,535 | 14,000 | 16,975 | 30,040 |
5 HP | 16,100 | 29,815 | 34,280 | 60,000 | 12,885 | 23,810 | 28,970 | 50,000 | |
7 1/2 HP | 24,335 | 46,170 | 54,840 | 19,430 | 36,870 | 43,790 | 60,000 | ||
10 HP | 33,040 | 60,000 | 60,000 | 26,385 | 49,300 | 59,460 | |||
15 HP | 49,845 | 39,800 | 60,000 |
Important Note: DCD models may lower under load. Brake motors or external locking systems are recommended.
Joyce/Dayton provides motor controls ranging from simple Motor Starters to complex positioning systems and Custom controls. Every system that is powered by an electric motor requires a control system. At Joyce, we know that choosing the best option can sometimes be a challenge. That’s why our Engineers are available to help you through the process.
Boots and special finishes are available for Joyce ComDRIVE (motorized) jacks. Choose from a variety of boot materials and designs for the jacks you select (translating, keyed, or KFTN). Joyce offers premium finishes, outdoor paint process, and custom finishes to meet your specifications. We have a hassle-free process for delivering what you need.
What you need to know to specify Machine Screw ComDRIVE jacks in industrial application.
Travel speeds and load capacities of standard ComDRIVE jacks are listed in the catalog. Here are a few tips.
ComDRIVE jacks are rated based on their static thrust capacity from 2-tons to 30-tons. But the selection of the best jack for the application requires further consideration.
1. When jacks are loaded in compression one must consider the load carrying capacity of the lifting screw (column load). How high do you need to lift the load? Choose a jack whose lifting screw is stout enough to handle the load at full rise.
2. Consider the travel speed of the DYNAMIC load. The speed at which the load will be moved is a limiting factor. How fast do you need to move the load? Sometimes double lead machine screw jacks or ball screw jacks are a better choice in a given application.
3. How frequently will the jack need to move the load? Remember that heat builds up between the machine screw and nut during normal operation. Duty cycles for machine screw jacks must include periods of rest to dissipate that heat.
Which jack design is best for your application? Once loads, duty cycles, and travel speeds are established, designers must select which of the three jack design to use.
Take the work out of using screw jacks in systems
Tell us what you need or use our exclusive JAX® Online software (it’s free). We will put together complete systems with single or multiple screw jacks for you. The software is great because it calculates motor horsepower and shaft diameters and torques. There are several common arrangements, but you can design your own.
Where are worm gear machine screw jacks used?
Motorized worm gear machine screw jacks (ComDRIVEs) are the workhorses of the lifting industry, available in static capacities up to 30-tons. They are commonly used to lift, hold, and position loads. Examples include: Platform lifts, Damper adjustments, Ergonomic lifts, Maintenance lifts, Roll adjustments, Earth Station Antennas, Drilling equipment, Solar Trackers, Conveyor adjustments, Packaging equipment, Gate adjustments, Dam adjustment, and Mine door openers.