Hebei jiali Rigging Manufacturing Co., Ltd.
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◆◆ Product Advantage
High-Strength Materials and Industrial-Grade Load Capacity
(Keywords: Industrial-grade manual chain hoist, High-load manual chain hoist)
Crafted with a Q235B high-quality carbon steel frame, key load-bearing components (e.g., chain wheels, hooks) undergo heat treatment for reinforcement, achieving a tensile strength ≥600MPa. Standard load capacities range from 0.5 to 10 tons (with 15-ton custom options available), boasting a safety factor of 4:1 (exceeding the industry standard of 3:1). Certified by third-party testing, it withstands continuous loads exceeding 100,000 cycles without structural deformation, making it ideal for lifting industrial heavyweights like machinery and pipelines.
Ergonomic Operation and Precise Control
(Keywords: Smooth manual chain hoist, Controllable lifting manual chain hoist)
Featuring an arc-shaped anti-slip handle (38mm grip diameter, ergonomic hand contour), paired with a precision gear set (gear reduction ratio of 1:12), it requires only 25-35N of operating force (≈2.5-3.5kg thrust) for single lifts, ensuring stable lifting speeds of 5-8m/min. An optimized chain guide groove prevents jamming, delivering positioning accuracy of ±2mm—perfect for precise equipment installation or lightweight cargo positioning.
Multi-Environment Adaptability: Corrosion Resistance & Dust/Waterproofing
(Keywords: Corrosion-resistant manual chain hoist, Durable manual chain hoist)
Surface-treated with a double-layer coating of epoxy zinc-rich primer + polyester topcoat (salt spray test ≥500 hours), or available in 304 stainless steel (suitable for chemical/coastal environments). Critical transmission components (bearings, chains) are equipped with dust covers, achieving an IP54 protection rating (dust/splash water resistance). It operates stably across -20℃ to +60℃, enhancing usability by 40% in harsh scenarios like mines or outdoor repairs.
Compact Storage & Portable Design
(Keywords: Space-saving manual chain hoist, Easy-to-carry manual chain hoist)
Innovative foldable chain storage design retracts the chain fully into the body when unloaded (storage length reduced by 30%). The 1-ton model measures just 320×180×250mm and weighs ≤8kg. With adjustable hook rings (adapting to Φ8-12mm suspension points) and a portable carry handle, it can be easily transported to elevated work points (e.g., shelves, rooftops), boosting space utilization by 25% in storage/maintenance applications.
◆◆ Technical Parameters
| Nominal Capacity | 0.5T - 20T |
| Standard Lifting Height | 2.5m - 3m (customizable up to 12m) |
| Test Load | 1.5 times the rated load (e.g., HS20 test load 250kN/25Ton) |
| Min. Distance Between Hooks | 255mm - 1100mm (increases with tonnage) |
| Hand Chain Pull at Full Load | 157N - 1100N (approx. 16kgf - 112kgf) |
| Number of Load Chain Falls | 1 - 8 rows (more rows for higher tonnage) |
| Hook Opening | 18mm - 80mm |
| Net Weight | 9.5kg - 150kg |
| Packing Dimensions | 27×19×16cm - 70×46×75cm |
| Chain Wire Diameter | 6mm - 10mm (high-strength alloy steel, compliant with EN 818-7 standard) |
| Weight Increase per Meter | 1.5kg - 19.4kg (increases with tonnage) |
| Operating Environment | -20°C to +70°C, explosion-proof, dust-proof, corrosion-resistant (special materials optional) |
| Safety Factor | ≥4 times (static), ≥1.5 times (dynamic) |
◆◆ Product Uses
1. Industrial Assembly & Machinery Installation
In manufacturing plants, chain hoists are critical for aligning heavy components (e.g., engine blocks, gearboxes) during machinery assembly. Their precise load control and low vibration minimize misalignment risks, ensuring accurate positioning. Compact designs fit tight workspaces, while portable models enable flexible movement across assembly lines.
2. Warehouse Logistics & Material Handling
Warehouses often lack fixed power sources or require short-distance cargo movement (e.g., loading/unloading trucks, stacking pallets). Chain hoists eliminate reliance on electricity, operating via manual pulling. Their compact size and corrosion-resistant options (e.g., galvanized chains) suit high-moisture areas, improving efficiency in narrow aisles or outdoor docks.
3. Construction & Infrastructure Maintenance
During building repairs (e.g., ceiling fan installation, roof equipment replacement) or bridge maintenance, chain hoists excel in elevated, hard-to-reach areas. Lightweight yet robust, they allow workers to lift materials (tools, pipes, fixtures) without heavy machinery, reducing setup time and ensuring safety in confined spaces.
4. Mining & Heavy Equipment Repair
Mines and industrial sites have rough terrain and limited access to power. Explosion-proof or heavy-duty chain hoists (with higher safety factors) withstand dust, vibrations, and impacts. They are used to hoist spare parts, repair underground machinery, or adjust conveyor systems, where reliability in harsh conditions is paramount.
5. Stage & Event Setup
Theater stages, concert rigs, or exhibition booths require frequent, precise lifting of lighting fixtures, backdrops, or props. Chain hoists offer silent operation (no motor noise) and smooth load adjustment, enabling crews to position elements quietly during rehearsals or live events, ensuring seamless setups.
Each scenario leverages chain hoists’ core strengths: portability, power-free operation, and adaptability to challenging environments, making them indispensable tools across industries.
◆◆ Product Operate Guide
1. Pre-use Check: Inspect chains for wear, hooks for deformation, and brake function. Ensure no overload (max load ≤ rated capacity).
2. Positioning: Align hook with load center to avoid tilting. Secure load with slings if needed.
3. Lifting: Hold hand chain, pull steadily upward (avoid jerking). Pause midway to confirm stability.
4. Moving: Use trolley or lifting eye to glide horizontally; keep load low for control.
5. Lowering: Release hand chain slowly, letting brake engage gradually. Never drop the load.
Tip: Lubricate chains quarterly for smoother operation. Always follow manufacturer’s safety labels.
◆◆ Product Video
◆◆ FAQ
Q: How to resolve chain jamming or sticking in a manual chain hoist?
A: First, check if the chain lacks lubrication or has foreign objects. Clean debris and apply specialized chain lubricant (e.g., lithium-based grease). Severe jamming may indicate gear wear or chain deformation—replace components. Ensure the chain stays straight during operation to avoid twisting.
Q: What risks arise from overloading a manual chain hoist?
A: Overloading can cause chain breakage, gear damage, hook deformation, or even load dropping. Strictly adhere to the rated load capacity. Stop use immediately if overloaded and inspect components.
Q: How to troubleshoot brake failure in a manual chain hoist?
A: Check if brake pads are worn (replace if thickness <2mm), pawl springs are loose, or debris is jamming the brake. Clean the brake, adjust clearance to 0.5-1mm, and replace components if necessary.
Q: What to do if the hook’s anti-drop device fails?
A: Inspect if the safety latch is missing or deformed. Replace the hook if its opening exceeds 15% of the original size. Regularly check hook wear (retire if worn >10%) and ensure proper closure.
Q: What maintenance is required for manual chain hoists?
A: Monthly: Clean the chain and apply anti-rust grease. Quarterly: Check gear meshing and bearing lubrication. For long-term storage, hang in a dry area and avoid contact with acidic/alkaline substances.
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