The Smallest Worm Screw Jacks On The World Markets
Micro-Miniature Screw Jacks Features
1. Lifting Force 2.5kN. Under max. lifting force, drive torque 1.2Nm (high speed), 0.4Nm
(low speed).
2. Lifting screw diameter 16 mm, pitch 4 mm.
3. High gear ratio 1/4, low gear ratio 1/16.
4. Translating screw, travelling nut rotating screw, keyed translating screw configurations
in upright or inverted mounting orientations.
5. Precision positioning, self-locking lead screw which supports the loads and hold
position with no need to employ brake mechanism or other locking systems.
6. Hand-operated screw jack by hand wheel or crank handle, or electric driven screw jack
by 3-phase or single phase motor or gear reduction motor.
7. No standard lead screw travel length, all lead screw travel length is processed
according customers requirements. Maximum permissible 300mm travel length.
8. Lead screw end fittings include top plate, clevis end, plain end and threaded end.
9. Individually or multiple screw jack lift system arrangements are available.
Micro-Miniature Screw Jacks Applications
Micro-miniature screw jacks matching mini bevel gearboxes with parts are composed of
small screw jacks lifting system, which widely used in beverage can conveyor systems
height adjustment and beverage can washing area of the production line, saving
man-hours and lowering the down time, crucial for increasing output and are extremely
pleased with the recent financial benefits. Prior to the upgrade when the can washer area
on each line required to be changed to accommodate a run taller or shorter cans the
conversion would be completed manually. Small screw jack lifting systems is utilized
several stages for washing and blow drying the cans. Suitable for lifting height adjustment
and washing in aluminium can production lines, magnetic conveying systems, steel can
line, aluminium can line, food can line, upgrade fill and packaging line, conversion steel
aluminum can line, bottle conveyor systems, case and pallet conveyor systems.
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

Micro-Miniature Screw Jacks Technical Parameters
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

Micro-Miniature Screw Jacks Dimensions
JTC2.5 Mini Screw Jack Ordering Information
JTC
1
-
2.5
2
-
UR 3
300
4
-
H 5
II
6
-
C
7
-
HW
8
1. Jack Series
JT: "Jacton" brand screw jack
C series cubic screw jack
2. Load Capacity
2.5: lifting force 2.5kN, only for thrust load.
Before selecting 2.5 frame no., please check above JTC2.5 mini screw jack specifications.
3. Screw Configuration & Mounting Orientation
US: Upright translating screw
IS: Inverted translating screw
UK: Upright keyed screw
IK: Inverted keyed screw
UR: Upright rotating screw
IR: Inverted rotating screw
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

4. Travel Stroke
300, means travel stroke 300mm
No standard travel stroke, JTC2.5 mini screw jack travel stroke produced following your
require travel length, maximum permissible 300mm travel length.
5. Gear Ratio
JTC2.5 mini screw jack gear ratios include 1/4, 1/16.
H: High gear ratio 1/4, 1mm travel length per full turn of worm shaft.
L: Low gear ratio 1/16, 0.25mm travel length per full turn of worm shaft.
6. Lift Screw End Fittings
JTC2.5 mini screw jack standard acme screw end fittings includes top plate, clevis end,
threaded end and plain end. If you have your own acme screw end fitting design, we can
make them following your requirements.
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

7. Worm Shaft Input Types
A: left side worm shaft input.
B: right side worm shaft input.
C: double worm shaft input.
M1: left side motor flange direct input.
M2: right side motor flange direct input.
M3: left side motor flange direct input, right side worm shaft input.
M4: right side motor flange direct input, left side worm shaft input.
8. Accessories
N: No accessory
PP: Protective pipe (lifting screw dustproof and rustproof)
BB: Bellows boot (lifting screw dustproof and rustproof)
HW: Hand wheel (hand operated jack, optional hand crank)
DC: Digital counter or digital position indicator (installed on worm shaft, precision display
stroke)
EM: Electric motor (motor driven jack, optional ac motor or dc motor)
GR: Gear reducer (motor driven jack with low speed, optional gear motor, worm gear
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

reducer, helical gear reducer)
LS: Limit switches (control stroke, when full extend or full retract travel, the motor will
stop )
SN: Stop nut (installed at the bottom of lifting screw, prevent lifting screw from being
removed from the jack housing)
PB: Pillow block bearing (when long distance between jack and jack, which fixes
connecting shaft, avoid swing)
FC: Flexible coupling (for shafts connection like connecting shaft and worm shaft)
CS: Connecting shaft (for connecting drive shafts like screw jack lift system)
BG: Miter gearbox (right angle transmit rotary motions, power or torque in screw jack lift
system)
SP: Swivel plate or trunnion mounting plates (installed on jack base with swivel pins for
pivoting of loads)
SM: Swivel mounting base or trunnion mounting base (matching swivel plate or trunnion
mounting plates)
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack

“JACTON” Company Profiles
Precision worm gear screw jacks, lifting jacks, machine screw actuators, ball screw jacks,
trapezoidal screw jacks, bevel gear screw jacks, worm gear driven lift mechanism, spiral
bevel gears right angle gearbox, miter gears drives 90 degree gearbox, multiple units
screw jack lifting system arrangements manufacturers and suppliers in China – Jacton
Electromechanical Co.,Ltd. Since 1997, only occupied 500 square meters for factory, up
to 2012, factory is occupied 5000 square meters with 55 employee staffs. With senior
engineers, experienced skilled workers and practiced sales teams, our company
consistently provides ideal mechanical power transmission solutions.
Application in roll forming line, theater stage lift table, solar tracking system, earth station
antennas, hydropower sluice gate, food processing line, coil sheet slitter line, tension
leveling line and straightening line, continuous galvanizing line, beverage production line,
railway maintenance lifting jack, angle tilt adjustments with double clevis, aircraft docking
system, printing press, plastic extruder, sewage auger, bonding equipment, metering
auger, sewage agitator, newspaper conveyor, bottling equipment, material handling, web
finishing, paper conveying, conveyor, cardboard box equipment, packaging, vertical pump
drive, sand spreader, residential mower, snow blower, mining equipment, crane,
agricultural, grain wagon, harvester, forage harvester, manure spreader, fertilizer spreader
and sewage conveyor etc.
Manufacturing Equipments include cnc lathes, gear cutting hobbing machines, radial
drilling machines, high speed thread whirling machines, worm shaft grinding machines,
vertical milling machines, high precision CNC machine tools, cnc precision automatic
lathes, lathes, punching machines, hydraulic straightening machines, polisher machines.
Testing equimments include noise meters, infrared thermometers, hardness testers, gear
meshing testing machines, micrometers, testing lifting screw moving smoothly adjustable
working table.
Customers are distributed throughout the world, such as USA, Canada, Mexico, Brazil,
Argentina, Chile, Australia, New Zealand, Japan, Korea, Thailand, India, Indonesia,
Malaysia, Philippines, Singapore, Vietnam, Sri Lanka, Pakistan, Iran, UAE, Saudi Arabia,
Turkey, South Africa, Egypt, Zambia, Germany, UK, Poland, Sweden, Slovak, Spain,
Greece, Italy, Russia, Netherland, Danmark, Belgium and Other Countries.
Jacton Electromechanical Co.,Ltd | Tel: +86 (0)769 81585852 | Fax: +86 (0)769 81620195
Email: sales@screw-jack.com | Web: www.screw-jack.com | Skype: jactonjack