Mechanical Jacks
Hand-operated mechanical jacks and drives for lifting, pulling, pushing, and rotating loads without hydraulics or electrics. METEC's mechanical jack line covers rack and pinion jacks, sluice gate drives, worm gear rotary drives, and the SIFEKU self-braking safety crank used across all of them.
Safety Crank
SIFEKU
A bi-directional, self-braking safety crank – the modern upgrade to the traditional pawl-and-ratchet, protecting both load and operator.
Features and Benefits:
- Maximum braking torque: 60 Nm (44.25 ft-lbs)
- Arm length 250 mm (10″); square drive 17 mm standard
- Silent operation, no pawl or secondary latching; kick-back proof
- Braking effect in both directions; holds load securely in any position
- Maintenance-free, totally enclosed, weather and temperature resistant
- Approved by TÜV as an independent safety crank
- Used on hoof-trimming chutes, conveyors, and manually operated jacks and winches
- Options: folding handle, tamper-proof two-piece design with removable crank handle
Rack and Pinion Jack
ZWW / ZWW-L
A wall-mounted rack and pinion jack for lifting, pulling, and pushing loads, with a solid steel toothed rack driven by precision-machined gears.
Features and Benefits:
- ZWW-L capacity: 250 kg (550 lbs) – 500 kg (1,100 lbs) – 1,000 kg (2,200 lbs)
- ZWW capacity: 1,500 kg (3,300 lbs) – 3,000 kg (6,600 lbs) – 5,000 kg (11,000 lbs) – 10,000 kg (22,000 lbs)
- Robust steel construction with precision-machined worm or spur gears
- Solid steel toothed rack with bore hole for fastening to load
- Hardened, precisely machined gearing for low wear and long service life
- Solid mounting tabs for rigid wall mounting
- Options: extended toothed racks, zinc plating, folding handle
Sluice Gate Jack
SCH-W
A rack and pinion sluice gate drive for opening and closing gates on canals, rivers, and irrigation systems, operated manually or motorized.
Features and Benefits:
- Standard capacity up to 10,000 kg (22,000 lbs)
- Standard travel of 1,000 mm (40″)
- Optimized gear ratio for manual or motorized operation
- Complete with SIFEKU self-braking, spring-loaded safety hand crank
- All-steel construction for strength and long service life
- Modular design; connecting shafts allow multiple units in series for mechanical synchronization
- Options: lengthened or shortened toothed rack, increased pulling capacity, galvanized housing and crank, tamper-proof two-piece crank
Worm Gear Drive
S20 / S24
A self-locking worm gear rotary drive for moving or rotating loads — rope drums, chain and sprocket drives, or slewing drives.
Features and Benefits:
- S20: cast-iron housing, machined worm wheel, hardened worm shaft on bronze bushings
- S24: diecast aluminum housing for hostile environments, phosphor-bronze worm wheel, Teflon-sintered bearings
- Self-locking worm gear holds load securely; enclosed housing retains grease lubrication
