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JT-30T Acme Screw Jack

Model: JT-30Ton-Acmescrewjack-Tr75x12
Categories: JT Acme Screw Jack »
Place of Origin: Made In China
Brand Name: JACTON
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Description:
JT-30T Acme Screw Jack Pictures 


JT-30T Acme Screw Jack Features
1. Static load capacity maximum 30 ton, dynamic load capacity maximum 9.6 ton.
2. Lift screw diameter 75 mm, pitch 12 mm.
3. Three worm gear ratios 1/12,1/18,1/36.
4. Translating screw, rotating screw, keyed screw configurations in upright or inverted mounting orientation.
5. Accurate positioning, self-locking acme screw which supports the loads and hold position with no need to employ brake mechanism or other locking systems.
6. Manually operated screw jack by hand wheel or hand crank, electrically screw jack by electric motor or gearmotor driven, or both.
7. 3-phase or single phase motor driven with 1500 rpm input, standard lifting speed 1500 mm/min, 1000 mm/min and 500 mm/min. 
8. No standard lift screw stroke, all lift screw travel length is processed according customers requirements. Under max. compression load, without guides, maximum 750 mm stroke, with guides maximum 1500 mm stroke. Under a tension load, maximum 4500 mm stroke. 
9. Lift screw end fittings include top plate, clevis end, plain end and threaded end, standard or your design dimensions are available.
10. Individually or multiple screw jack lift system arrangements are available.
11. Compared with fast speed hydraulic cylinder and pneumatic cylinder, JT-30T acme screw jack is of easy installation, small sizes, easy operation and maintenance, precisely lifting, self-locking, synchronous speed, environmental protection, multiple units arrangements.

JT-30T Acme Screw Jack Structure
JT-30T Screw Jack Structure
JT-30T acme screw jack structure includes worm shaft, worm shaft cover, bronze worm gear, worm shaft bearing, tapered roller bearing, hex.screw, grease seal, grease plug, housing, key, paper shim, fittings and self-locking acme screw.
Self Locking Acme Screw
1. Acme screw rotary cutting processing machine, high precision
2. #45 steel material, customized stainless steel screw
3. Minimum friction for smooth operation and longer life
4. Self-locking, load holding without brake mechanism and locking system, accurate positioning
5. Minimum axial backlash
Tapered Roller Bearing
1. Preloaded for reduced assembly spring rate and high thrust load
2. Provides excellent support for side loading and horizontal applications
3. Maintains exact gear alignment under separating and thrust forces
4. Bearing sized for endurance and maximum loading conditions
Bronze Worm Gear
1. Precison hobbing machine for processing
2. Bronze material, high hardness, excellent wear resistance
3. Worm gear center design for long life
Worm Shaft
1. Worm rotary cutting processing machine and grinding machine processing, high precision
2. High frequency heat treatment of worm, #45 steel material, high hardness, customized stainless steel worm shaft
Rugged Housing
1. CNC precision automatic lathe processing
2. Cast iron or ductile cast iron material, customized alloy steel material
Grease Seals
1. Double lip grease seal, prevent grease leak
Note: normal grease seals work temperature range -20 deg C to +80 deg C. For super low temperature or super high temperature operating temperature, please consult Jacton engineers


JT-30T Acme Screw Jack Specifications


JT-30T Acme Screw Jack Dimensional Drawing


JT-30T Acme Screw Jack Ordering Information

JT   -   30T   -   UR  -   300   -   H  -   II   -   C   -   HW

 1           2            3          4          5      6        7         8 


1. Jack Brand
JT: "Jacton" brand screw jack

2. Load Capacity
30T: 30 ton static load
Before selecting 30T, please check above JT-30T acme screw jack specifications.

3. Screw Configuration & Mounting Orientation
US:
 Upright translating screw                UK: Upright keyed screw                 UR: Upright rotating screw
IS: Inverted translating screw                 IK: Inverted keyed screw                 IR: Inverted rotating screw


4. Travel Stroke
300, means travel stroke 300mm
Customized lifting screw travel stroke.


5. Gear Ratio
JT-30T jack gear ratios include 1/12,1/18,1/36.
H: High gear ratio 1/12, 1mm travel length per full turn of worm shaft.                                     
M: Medium gear ratio 1/18, 0.67mm travel length per full turn of worm shaft. 
L: Low gear ratio 1/36, 0.33mm travel length per full turn of worm shaft. 

6. Lifting Screw Ends
Standard lift screw ends includes top plate, clevis end, threaded end and plain end, also customized special required lifting screw ends.


7. Worm Shaft Input Types
A: left side worm shaft input.              
B: right side worm shaft input.             
C: double worm shaft input.
M1: right side motor flange direct input, left side worm shaft input.                                       
M2: right side motor flange direct input. 
M3: left side motor flange direct input, right side worm shaft input.                  
M4: left side motor flange direct input.  


8. Accessories
N:
 No accessory
PP: Protective tube (lifting screw dust-proof and rustproof)
BB: Bellows boots (lifting screw dust-proof and rustproof)
HW: Hand wheel (hand operated)
DC: Digital counter or digital position indicator (installed on worm shaft, precision display stroke)
EM: Electric motor (motor driven)
GR: Gear reducer (motor driven with reduction gearbox)
WR: Worm gear reducer (motor driven with worm reduction gearbox)
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 the supports, pillow block bearing is recommended)
FB: Flange pillow block bearing (when rotating screw jacks with long stroke or unguided, flange pillow block bearing is recommended)
FC: Flexible coupling (interconnections with drive shafts)
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 (installed on jack base with swivel pins for pivoting of loads)
RE: Rod end (solar tracking systems is required)


JT-30T Acme Screw Jack Applications
JT series screw jack applications in steel mills roller adjustment, pipe mills roller adjustment, tube mills roller adjustment, roll forming mills roller adjustment, plate mills roller adjustment, rolling mills rollers adjustment, powered feeder straightener rolls adjustment, roller system adjustment, adjusting synchronous coil feed lines rolls, precision roller leveler, cold roller adjustment, hot roller adjustment, coil handing, semi-finished product handling, brush adjustment belt cleaning, zinc pot lifting mechanism, air knife system adjustment, roll pass system, sizing stand and molten steel pot lifting system. Whatever you pushing, pulling, lifting, adjusting or aligning linear motions need, we will have a the most complete solution for you.
JT-30T acme screw jack applications in steel mills roller adjustment, pipe mills roller adjustment, tube mills roller adjustment, roll forming mills roller adjustment, plate mills roller adjustment, rolling mills rollers adjustment, powered feeder straightener rolls adjustment, roller system adjustment, adjusting synchronous coil feed lines rolls, precision roller leveler, cold roller adjustment, hot roller adjustment, coil handing, semi-finished product handling, brush adjustment belt cleaning, zinc pot lifting mechanism, air knife system adjustment, roll pass system, sizing stand and molten steel pot lifting system. Whatever you pushing, pulling, lifting, adjusting or aligning linear motions need, we will have a the most complete solution for you.
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Jacton Industry Co.,Ltd.
Contact: Warren Lee
Skype: jactonjack
T: 86-769-81585810
F: 86-769-81585852
E: sales@screw-jack.com
W: www.screw-jack.com

Building C, No.3078, Garden Road, Xin An Community, Chang An, Dongguan 523880, Guangdong, China    Phone: 86-769-81585810 | Fax: 86-769-81585852
China Screw Jack,Ball Screw Jack,Machine Screw Jack,Worm Gear Screw Jack,Bevel Gear Screw Jack,Miter Gearbox,Screw Jack Lift System Manufacturer