Machine Screw ComDRIVEs

Joyce Machine Screw ComDRIVEs combine a machine screw jack, motor and gear reducer into a single compact unit. 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.

  • ComDRIVEs can power an entire jacking system
  • Reduce the number of components that must be specified
  • Simplify designs
  • Reduce installation costs with only a single plate needed to mount the jack body
  • Reduce the number of couplings and shafts required in multi-jack systems
  • Standard 230/460 volt, 3-phase, 60 hertz motor included
  • Custom finishes available

 

Parts list and exploded views are included in the O&M Manual. A serial number is attached to the product housing.

Anti-backlash Devices

  • Available for machine screw jacks
  • Available for metric (trapezoidal) jacks
  • Limits lifting screw movement
  • Anti-backlash Devices

 

ComDRIVE Options

  • Special reducer ratios available
  • Special mounting positions available
  • Special motor adapters available
  • Mount limit switch to gear reducers

Encoders

  • Standard 200 PPR, quadrature mount on input shaft

OR

  • Ring Style 60 PPR, quadrature mounts to C-faced motor flange
  • Encoders

 

Finishes

  • Enamel finish (standard)
  • Epoxy finish
  • Epoxy finish – Steel It epoxy
  • Outdoor paint process
  • Custom finishes available
  • Anodized (250-lb to 1-ton)
  • Nickel, Xylan®, Armoloy®
  •  Finishes

  

   

Follower Nuts

  • For KFTN jack
  • For translating jack

Input Shaft (worm)

  • Square or hex to fit tool
  • Special lengths
  • 17-4 stainless steel available
  • Metric diameters available
  • One side can be cut off
  • Other modifications available
  • Input shaft cover available

Limit Switches

  • Rotary cam (2-7 switches)
  • SPDT standard
  • DPDT available
  • Explosion proof available
  • Limit Switches

 

Lubrication

  • Standard operating (40°F to 220°F)
  • Low temperature option
  • High temperature option
  • Food grade option

Machine Screws

  • Right hand thread standard
  • Left hand thread available on many models
  • Special material available
  • Special pitch/lead available
  • Special finishes available
  • Special machining options
  • Special end conditions available

Mechanical Counters

 

Potentiometers

  • 0-10V (POTA)
  • 4-20mA (POTB)
  • 0-10V with limit switches (POTC)
  • 4-20mA with limit switches(POTD)
  • IP65 available
  • Potentiometers

 

Protective Boots

  • Protection from dirt and dust
  • Guard against moisture
  • Guard against corrosive contaminants
  • Neoprene coated nylon (std)
  • Special materials available
  • Boot Material Chart
  • Protective Boots

Screw Stops

  • Standard on ComDRIVEs
  • Adjustable
  • Bolt- on

Thrust Rings

  • Used in applications where static loads exceed jack capacity

Wormgear Sets

  • Right hand gear set standard
  • Left hand available on many models
  • 25:1 ratio option available on several models

Sample Part Number:

Click on the part number to reveal additional informaton about jack designs and shaft codes.

Model Number

2-Ton 3-Ton 5-Ton 10-Ton 15-Ton 20-Ton 25-Ton 30-Ton
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.)

Jack Configuration

U=Upright

I=Inverted

End Conditions

1=T1
(plain end)

2=T2
(load pad)

3=T3
(threaded end)

4=T4
(male clevis)

Jack Designs

S=Translating

K=Keyed for Non Rotation

N=Traveling Nut

D=Double Clevis

R=KFTN Trunnion*
T=Trunnion*

* Standard trunnion mounts available on 2-ton through 20-ton jacks.

ComDRIVE® Rise

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
STDX=Standard

XXXX=Remove
STDX=Standard

 


Optional Shaft Codes

Screw Stops and Boots

Extending and retracting screw stops are standard on ComDRIVEs. When boots are added to ComDRIVEs, the closed height of the unit may be increased.

Mechanical Counters

CNT0=0.001" Increments
Note: Contact Joyce/Dayton for availability and options.

Geared Potentiometers

POTA=0-10V (IP65)
POTB=4-20MA (IP65)
POTC=0-10V w/2 switches*
POTD=4-20MA w/2 switches*
*Optional IP65 rating available

Encoders and Electronic Limit Switches

ENCX=Encoder
ELS2=2 Position Electronic Switch
ELS4=4 Position Electronic Switch
ELS6=6 Position Electronic Switch

Motor for Systems and Direct Drives

  • All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available. Specify the appropriate motor size from the chart on the right.
  • Refer to the "Additional Options" chart on the preceding page as needed.
  • Brake motors (M2) are recommended for jacks that are not self-locking, and jacks with double lead screws.
  • If the motor frequency will be varied to provide a "soft" start an inverter duty motor may be required.

ComDRIVE Reducers

Ordering Example:
P2 (Mounting Positions) A (Ratio) C (Motor code from chart above)

Mounting Positions
Code P1 P2 P3 P4
Left Side
Shaft Options
Right Side
Shaft Options
Ratio
5:1
Code A
7.5:1
Code B
10:1
Code C
Motors
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.

Mechanical Limit Switches

Ordering Example:
LA (Models) 1(Number of DPDT Switches) 3(Available Positions)

Model Code   Available Positions
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
LS8-504 LB
LS9-502 LC
LS9-503 LD Right Side Shaft Options
LS9-504 LE
LS9-505 LF
LS9-506 LG
  • 2, 3, 5, 10, 15, and 20 ton jacks are available with positions #1, #3, and #5
  • 25, 30, 35, 50, 75, 100, and 150 ton jacks are available with positions #1, #4, #7, and #8

These positions are not standard. Contact Joyce/Dayton with your requirements.

LS9-507 LH

Additional Options

  • X=Standard Jack, no additional options
  • S=Additional Specification Required (comment as necessary)

Anti-Backlash

  • A=Split Nut
  • A90=A90 Design
  • A95=A95 Design

Protective Boots

  • B=Protective Boot
  • D=Dual Protective Boot

Finishes

  • F1=Do Not Paint
  • F2=Epoxy Paint
  • F3=Outdoor Paint Process

Motor Options

  • M1=Less Motor
  • M2=Brake Motor
  • M3=Single Phase Motor (120VAC)
  • M4=50Hz Motor

Grease/Seals

  • H1=High Temperature Operation
  • H2=Food Grade

Screw Stops

  • ST0=Extending
  • ST1=Retracting
  • ST2=Both
  • Specify as many options as needed
2 Ton Model NumberCD62CD122CD242DCD62DCD122DCD242
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 NumberCD63CD123CD243DCD63DCD123DCD243
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 NumberCD65CD125CD245DCD65DCD125DCD245
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 NumberCD810CD2410DCD810DCD2410
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
5 HP 20,000       20,000      
15 Ton Model NumberCD815CD2415DCD815DCD2415
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 NumberCD820CD2420DCD820DCD2420
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 NumberCD820CD2420DCD820DCD2420
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 NumberCD1130CD3230DCD1130DCD3230
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.


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.

  1. Select the best option from the chart based on your load and speed.
  2. Remember the charted load is based on a single ComDRIVE. If you pair a ComDRIVE with a jack, choose a motor that can lift the total system load.
  3. Double-lead ComDrives can achieve faster travel speeds than their single-lead counterparts but they may not be self-locking . Double-lead part numbers begin with "D" ( DWJT62, DWJ245, etc.).
  4. Standard ComDRIVES use 1750 RPM, 3 phase, 60 HZ motors but we can supply whatever you need.
  5. When you buy a ComDRIVE with a companipon jack, Joyce will deliver a matched jack(s) with the same closed height.
  6. Larger capacity ComDRIVES are available upon request. Let us know what you need.

 

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.

  • Translating Design Jacks are most often selected. With this design, a driven input worm acts on an internal worm gear causing the lifting screw to extend or retract. Operation requires that rotation of the lifting screw be prevented. This rotation it restrained whenever two or more jacks are tied to the same load.
  • Keyed Design Jacks are used any time rotation of the lifting screw is not restrained. For instance, when you must lift the jack to meet a load. This is how they work: A key, fixed to the jack housing and inserted into a keyway milled into the length of the lifting screw forces the lifting screw to translate without rotating.
  • Keyed For Travelign Nut Design Jacks (KFTN) are another option. These jacks have a fixed length lifting screw that rotates. Loads are attached to a flanged “traveling” nut that translates up and down the length of the rotating screw. This type of jack is ideal for applications that cannot accommodate a screw protection tube or that require a flush mount

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.