dam gate hoist, head gate hoist, electric gate gear, sluice gate lifting gear, sluice gate jack, screw jack raising and lowering dampers features: Important Components: 1. Heavy duty and self lock screw jack. Special requirements stainless steel jack 2. AC gear motor, worm gear reducer, helical bevel gear reducer or other gear reduction mechanism. 3. Limit switches or prevent overtravel limiter for control full extension and retraction travel stroke, which installed on steel protective pipe cover. 4. Steel protective pipe cover for anti-rust and anti-dust under screw jack gearbox, when full retraction stroke. Other Features: 1. Inverted type installation, tension load. 2. Translating screw with female thread cylinder rod clevis end. 3. Low speed gear ratio screw jack with gear reduction mechanism geared motor. 4. Lifting screw total length = required stroke + foundation beam thickness + jack housing height + screw top end length. 5. Lifting speed about 150 mm/min to 300 mm/min, it depends on customers requirements. 6. Selection screw jack, should consider gate sizes, self weight, water pressure force, water impulsive force. 7. We made water conservancy project with screw jack stroke 900 mm, 1000 mm, 1500 mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm, 4000 mm, 4500 mm, 5000 mm, 5500 mm, 6000 mm. Please note, longer travel stroke slower travel speed. Customers Used Screw Jacks Models: 1. JTW-35T-IS-4000-L-II-M4-PP/GR/LS. Lifting screw sizes Tr100x18, 35 ton maximum tension lifting force, inverted mounting screw jack, translating screw configuration, long travel length 4000mm, low gear ratio 1/32, clevis end fitting, motor flange adapter, protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit switches. 2. JTW-25T-IS-3500-L-II-M4- PP/GR/LS. Lifting screw sizes Tr90x16, 25ton maximum tension lifting force, inverted mounting screw jack, translating screw configuration, long travel length 3500mm, low gear ratio 1/32, clevis end fitting, motor flange adapter, protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit switches. 3. JTW-20T-IS-3000-L-II-M4-PP/GR/LS. Lifting screw sizes Tr65x12, 20ton maximum tension lifting force, inverted mounting screw jack, translating screw configuration, long travel length 3000mm, low gear ratio 1/24, clevis end fitting, motor flange adapter, protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit switches.

1. 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
Screw Jack For Raising and Lowering Sluice Gate
Important Components:
1. Heavy duty and self lock screw jack. Special requirements stainless steel jack
2. AC gear motor, worm gear reducer, helical bevel gear reducer or other gear reduction
mechanism.
3. Limit switches or prevent overtravel limiter for control full extension and retraction travel
stroke, which installed on steel protective pipe cover.
4. Steel protective pipe cover for anti-rust and anti-dust under screw jack gearbox, when
full retraction stroke.
Other Features:
1. Inverted type installation, tension load.
2. Translating screw with female thread cylinder rod clevis end.
3. Low speed gear ratio screw jack with gear reduction mechanism geared motor.
4. Lifting screw total length = required stroke + foundation beam thickness + jack housing
height + screw top end length.
5. Lifting speed about 150 mm/min to 300 mm/min, it depends on customers requirements.
6. Selection screw jack, should consider gate sizes, self weight, water pressure force,
water impulsive force.
7. We made water conservancy project with screw jack stroke 900 mm, 1000 mm, 1500
mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm, 4000 mm, 4500 mm, 5000 mm, 5500 mm,
6000 mm. Please note, longer travel stroke slower travel speed.
Customers Used Screw Jacks Models:
1. JTW-35T-IS-4000-L-II-M4-PP/GR/LS. Lifting screw sizes Tr100x18, 35 ton maximum
tension lifting force, inverted mounting screw jack, translating screw configuration, long
travel length 4000mm, low gear ratio 1/32, clevis end fitting, motor flange adapter,
protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit
switches.
2. JTW-25T-IS-3500-L-II-M4- PP/GR/LS. Lifting screw sizes Tr90x16, 25ton maximum
tension lifting force, inverted mounting screw jack, translating screw configuration, long
travel length 3500mm, low gear ratio 1/32, clevis end fitting, motor flange adapter,
protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit
switches.
3. JTW-20T-IS-3000-L-II-M4-PP/GR/LS. Lifting screw sizes Tr65x12, 20ton maximum
tension lifting force, inverted mounting screw jack, translating screw configuration, long
travel length 3000mm, low gear ratio 1/24, clevis end fitting, motor flange adapter,
protective pipe, 3-phase 10:1 ratio flange mounted geared induction motor and limit
switches.

2. 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