Manual Chain Block 2T
IA 2-ton (2T) manual chain block is a heavy-duty lifting device that uses a hand chain and internal gears to lift loads up to 4,400 lbs (2,000 kg) safely without electricity
Description
Manual Chain Block 2T
A manual chain block 2T is a heavy-duty mechanical lifting device designed to lift loads up to 2,000 kg (2 tonnes) using a hand-operated chain and internal gear reduction system.
Key Features
- Lifting Capacity: Rated for 2 tons (2,000 kg) , often with an overload safety margin tested up to 50% higher (3 tons).
- Standard Lift Height: Commonly features a 3-meter (approx. 10 ft) standard height of lift, with options reaching up to 6 meters (20 ft).
- Braking System: Equipped with an automatic dual-pawl or mechanical load brake that secures the load automatically and prevents slipping or accidental drops when the hand chain is released.]
- Load Chain: Utilizes a high-strength Grade 80 (G80) alloy steel load chain (typically around 8mm in diameter) that is heat-treated for superior wear and corrosion resistance.
- Hand Chain: Includes a galvanized or zinc-plated hand chain to resist rusting during regular manual operation.
- Safety Hooks: Features drop-forged steel top and bottom swivel hooks with 360-degree rotation and heavy-duty safety latches to prevent accidental unhooking.]
- Low Pull Effort: Engineered with internal gearing that requires minimal manual pull force (typically between 310N to 343N ) to raise the maximum rated load.
- Compact & Portable: Built with a robust, lightweight steel gear housing and casing designed for restricted headroom and easy rigging on construction sites, workshops, or garages
Specification
| Parameter | Specification Details |
|---|---|
| Hooks | Drop-forged steel with 360° swivel & safety latches |
| Performance | Working Load Limit (WLL) 2 Tons / 2,000 kg / 4,400 lbs |
| Braking System | Weston-style dual-pawl mechanical brake |
| Internal Gears | Triple-spur heat-treated steel gears |
| Proof Test Load | 3,000 kg (1.5x Rated Capacity) |
| Load Chain Grade | Grade 80 (G80) or Grade 70 (G70) |
| Hand Chain Diameter | 4.5 mm to 5.0 mm |
| Hook Throat Opening | 32 mm – 35 mm (1.25" – 1.38") |
| Sizing & Weight | Standard Lift Heights 3 meters (10 ft) or 6 meters (20 ft) |
| Chain Specifications | Load Chain Diameter 6.0 mm to 8.0 mm |
| Materials & Build | Housing Shell Impact-resistant, cold-rolled carbon steel |
| Specification Category | Parameter Standard Value / Measurement |
| Net Weight (with 3m Lift) | 12 kg – 14 kg (26.4 lbs – 30.8 lbs) |
| Regulatory Certifications | CE, TUV, GS, ISO9001, EN13157 |
| Operating Temperature Range | -40°C to +60°C (-40°F to 140°F) |
| Effort Required to Lift Max Load | 310 N to 343 N (approx. 31–35 kg of pull force) |
| Added Weight per Meter of Extra Lift | ~1.4 kg to 1.7 kg per additional meter |
| Number of Load Chain Falls (Strands) | 1 or 2 (model-dependent) |
| Headroom (Min. Hook-to-Hook Distance) | 400 mm – 460 mm (15.7" – 18.1") |
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