Candy Controls
When Timing is Everything

Candy Cubic Screw Jack

Quick Facts

  • Rotating and Translating type worm gear screw jacks
  • Load capacity from 0.1 kN to 500 kN
  • Cubic design provides precision machined mounting surfaces
  • Self locking trapezoidal screw offers maximum stroke of 6,500 mm
  • Single jack or multiple jack systems
  • Custom design available

Product Overview

Candy Cubic Screw Jack features a comprehensive line of worm gear jacks. These cubic-style screw jacks are available in two versions, Rotating and Translating, each with a number of possible configurations and options. Candy Cubic Screw Jack is the solution for a wide variety of industrial lifting, lowering and pushing applications.

Technical Data

Rate of Travel

Travel is determined by the ratio of the worm gear screw jack, the standard ratio, N, produces 1mm of travel per one revolution of the input shaft, or worm. An input speed of 1,500 rpm equals 1,500mm of travel per minute. Maximum input shaft speed is 1,800 RPM.

The alternative ratio, L, produces 0.25mm of travel for each revolution of the input shaft. Based on an input shaft speed of 1,500 rpm, this ratio produces a linear speed of 375mm per minute.

Tolerances and Backlash

  • Trapezoidal screw end play is 0.15mm
  • Radial play is 0.2mm
  • Lifting screw outer diameter and sleeve diameter free tolerance is 0.2mm
  • Worm shaft and gear play is ± 3 degrees for ratio N, and ± 5 degrees for ratio L

Lateral Force

Lateral force will reduce the working life of the screw jack and can lead to product failure. The screw jack(s) should be isolated from lateral forces via the use of guide rails. A Rotating or Traveling Nut-Type worm gear screw jack must be used in single jack applications with no external guiding.

Self-Locking Function

Trapezoidal type screws are typically self locking. This function, however, depends on a variety of parameters, including, but not limited to screw pitch, screw jack ratio, lubrication, vibration, mounting position, etc. A brake or brake-motor may be required to guarantee holding position, please consult Candy Controls during the design process. A brake is recommended for all applications involving vibration.

Stop Collar

Following a customer’s requirement, screw jacks may be fitted with a stop collar to prevent the screw from being removed from the gearbox. A stop collar is not to be used as a fixed stop.

Working Temperatures

Normal operating conditions are -20ºC to 80ºC. Please consult Candy Controls for applications that require temperatures outside this range.

Lubrication

Worm gear screw jacks are shipped from the factory with our standard NLGI Grade 2 grease. Recommended lubrication maintenance is recommended after the first 300 hours of use, and then every 1,000 hours of use thereafter.

FAQ

Q: What is the difference between a trapezoidal worm gear screw jack and a ball screw jack?

A: The trapezoidal screw jack uses a threaded acme screw that is typically self-locking, meaning it will hold its position without a brake. Ball screw jacks incorporate ball screws to convert rotary motion to linear movement. Ball screw jacks are inherently more efficient, requiring 1/3 the horsepower compared to trapezoidal worm gear jacks. Due to the efficiency of a ball screw jack, a brake must be used to stop and hold a load in position.

Q: What is a Translating or Keyed-Type Screw Jack?

A: This type of jack has a key fixed to the jack housing and inserted into a keyway milled into the lifting screw which forces the screw to translate through the gearbox housing without rotating.

Q: What is a Rotating or Traveling Nut-Type Screw Jack?

A: This design incorporates a lifting screw keyed to the worm gear as a single unit, forcing the lifting screw to rotate in the gearbox, but not translate. A traveling nut, running onthe rotating screw generates linear motion for the attached load. This type of jack is ideal for applications that cannot accommodate a screw protection tube.

Q: Which type of screw jack is best for a single jack system?

A: In a single jack application, with no guide rails to isolate lateral load, a Rotating or Keyed screw jack must be used. Multiple jack applications, or single jack applications that are fully guided may use Translating or Keyed-Type screw jacks.

Q: Can a screw jack be operated in multiple unit systems:

A: Yes, screw jacks may be easily configured in systems, motorized and manual, to raise and lower a load in unison.

Q: Can a worm gear screw jack be operated at high speed?

A: Input power should not exceed the KW rating in specification tables. Maximum gearbox speed should not exceed 1,800 rpm.

Specification Overview

MODEL
NUMBER
MAX STATIC
LOAD
(Kn) – (LBS. Force)
MAX DYNAMIC
LOAD
(Kn) – (LBS. Force)
SCREW
DIAMETER
(MM)
SCREW PITCH
(MM)
AVAILABLE
RATIOS
TRAVEL
STOKE/TURN
(LOW – HIGH RATIO)
MAX
STROKE
(MM)
CSJ 016 1 – 224 1 – 224 16 4 4:1 16:1 1 – .25 (MM) 200
CSJ 018 5 – 1,124 5 – 1,124 18 4 4:1 16:1 1 – .25 (MM) 400
CSJ 020 10 – 2,248 10 – 2,248 20 4 4:1 16:1 1 – .25 (MM) 750
CSJ 030 20 – 4,496 20 – 4,496 30 6 6:1 24:1 1 – .25 (MM) 1400
CSJ 040 50 – 11,240 50 – 11,240 40 7 7:1 28:1 1 – .25 (MM) 1500
CSJ 055 80 – 17,984 80 – 17,984 55 9 9:1 36:1 1 – .25 (MM) 2500
CSJ 060 150 – 33,721 150 – 33,721 60 9 9:1 36:1 1 – .25 (MM) 3000
CSJ 070 200 – 44,961 200 – 44,961 70 10 10:1 40:1 1 – .25 (MM) 5000
CSJ 080 250 – 56,202 250 – 56,202 80 10 10:1 40:1 1 – .25 (MM) 6000
CSJ 100 350 – 78,683 350 – 78,683 100 10 10:1 40:1 1 – .25 (MM) 6500
CSJ 120 500 – 112,404 500 – 112,404 120 14 14:1 56:1 1 – .25 (MM) 6500

Accessories

accessoriesPic

MODEL 018 020 030 040 055 060 070 080 100 120
A1 72 85 105 145 171 205 230 230 270 330
A2 52 63 81 115 131 155 170 170 190 230
A3 8.5 8.5 11 13.5 22 26 32 32 39 45
A4 20 20 24 30 40 50 65 65 80 100
A5 100 120 150 204 236 250 290 290 350 430
A6 120 140 170 230 270 290 340 340 410 400
A7 10 10 10 13 17 20 25 25 30 35
A8 10 10 12 16 25 30 40 40 50 60
L1 110 140 170 240 270 290 330 330 410 520
L2 80 100 130 180 200 210 240 240 290 360
L3 49 60 76 102 117 120 140 140 165 210
L4 9 10 11 12 17 15 20 20 20 30
L5 72 85 105 145 165 195 220 220 250 300
L6 13 18 18 28 33 38 43 43 58 78
D 15 20 25 35 45 50 70 70 80 90
D1 44 58 72 86 115 130 170 170 160 175
D2 18 23 28 38 48 56 76 76 88 96
B 20 25 30 40 50 60 80 80 90 100
D1 28 32 38 63 72 85 95 105 130 160
D4 38 45 50 78 90 105 140 150 185 230
D5 48 55 62 95 110 125 180 190 240 300
6*D6 6 7 70 9 11 11 17 17 25 28
H1 44 44 46 73 97 99 100 110 130 16
H2 12 12 14 16 18 20 30 30 35 40

Ordering/Dimensions

ordering-csj

Installation

Translating-type: lifting screw
rotation and do linear motion
Keyed-type: lifting screw anti-rotation
and do linear motion
Rotating-type: lifting screw fixed
rotation travel nut linear motion
csj-01 csj-02 csj-03

Input Forms

(single input) SB (double input)
SAR SAL
sar-01 sal sb
C (directive drive-single input) D (directive drive double input)
MCR MCL MDR MDL
mcr mcl mdr mdl

Multiple Jack Systems