Yangyu hand chain hoists deliver 0.5-20 ton lifting capacities with 3:1 mechanical advantage
Heat-treated load chains and precision gears enable <2% effort-to-load ratios
360° rotation hooks and sealed bearings prevent torsion for smooth vertical lifts
Drop-forged hooks and overload clutches exceed ASME B30.16 safety standards
Modular designs reduce maintenance time by 40% compared to competitors
Yangyu hand chain hoists transform manual lifting through precision-machined components:
Gearing System: Triple-stage reduction gears amplify input force, enabling a 50kg pull to lift 1,500kg loads. The hardened alloy steel construction prevents tooth deformation under shock loads .
Load Chain: Grade 80 alloy chains undergo case-hardening to 1,200-1,500 HV surface hardness, resisting wear 3x longer than standard chains. Self-lubricating bushings ensure corrosion-free operation in humid environments .
Ergonomic Hand Chain: Bi-directional polypropylene links with textured grips reduce hand slippage by 70%, even with oil-contaminated gloves.
Table: Technical Specifications by Capacity
| Model | Capacity | Standard Lift | Net Weight | Min. Hand Force |
|---|---|---|---|---|
| YHY-0.5T | 500kg | 3m | 14kg | 18kg |
| YHY-3T | 3 tons | 3m | 38kg | 28kg |
| YHY-10T | 10 tons | 3m | 98kg | 36kg |
| YHY-20T | 20 tons | 3m | 210kg | 42kg |
Yangyu integrates fail-safe mechanisms surpassing industry standards:
Overload Clutch: Automatically disengages gears at 110% rated capacity, preventing structural damage during accidental overloads. Tested to 15,000 cycles without degradation 5.
Double-Latch Hooks: Forged steel hooks with secondary safety catches comply with ISO 2415 load testing protocols. Each hook undergoes magnetic particle inspection for micro-fractures.
Load Arrestor: Spring-loaded pawl locks the load chain instantly if sudden descent occurs, limiting free-fall to <5cm .
Automotive: Position engines during assembly with ±3mm precision using YHY-3T models. The sealed gearbox prevents contamination from metal shavings.
Machinery Installation: Align 10-ton CNC bases in tight spaces where overhead cranes can’t operate.
Steel Erection: Lift I-beams vertically without swing using the 360° rotation hook. Dust-shielded bearings maintain smooth operation on dusty sites .
Maintenance: Lower turbine components through service hatches with compact YHY-1T hoists (headroom: 28cm).
Dock Operations: Handle awkwardly shaped cargo via tandem lifting with two YHY-5T units. Synchronized hand chains prevent load imbalance.
*Table: Competitive Analysis (3-Ton Models)*
| Feature | Yangyu YHY-3T | Standard Hoist A | Premium Hoist B |
|---|---|---|---|
| Effort Required | 28kg | 35kg | 30kg |
| Chain Life | 10,000 cycles | 6,000 cycles | 8,000 cycles |
| Overload Protection | Integrated clutch | None | Optional add-on |
| Hook Rotation | 360° unlimited | 180° limited | 360° limited |
| Maintenance Interval | 500 hours | 250 hours | 300 hours |
Yangyu outperforms competitors in durability and safety while reducing operator fatigue by 25% .
Follow this 4-step maintenance routine to extend service life:
Daily Inspection:
Check hook latch engagement
Test brake function (lift 10cm, release hand chain)
Monthly Service:
Soak load chain in ISO VG 68 oil for 2 hours
Lubricate pivot points with lithium-epoxy grease
Annual Overhaul:
Replace worn pawls and friction discs
Measure gear backlash (max tolerance: 0.3mm)
5-Year Recertification:
Conduct magnetic particle testing on hooks
Perform 125% load test
Critical signs requiring immediate maintenance:
3% chain elongation over 10 links
Jerky movement when lifting partial loads
Visible pitting on gear teeth
Consider these parameters when choosing your Yangyu hoist:
Load Profile: For frequent near-capacity lifts, select the next higher capacity model
Environment:
Foundries: Specify high-temperature seals (-20°C to 300°C)
Marine sites: Choose zinc-nickel plated chains
Mounting:
Fixed point: Use swivel-top hooks
Trolley systems: Pair with low-clearance trolleys (adds 12cm height)
Special Needs:
Explosion-proof versions for chemical plants
ATEX-certified models for grain silos
Precision Manufacturing: CNC-machined gears maintain ±0.01mm tolerances
Supply Chain Integrity: Vertical integration from steel smelting to final assembly
Global Certifications: CE, GS, OSHA, and GOST-R compliance
Lifecycle Cost: 50% lower TCO over 10 years compared to economy brands
Yangyu’s 2025 roadmap includes:
IoT Integration: Load sensors transmitting weight data to smartphones via Bluetooth
ErgoGrip Hand Chains: Pressure-distributing handles reducing repetitive strain injuries
Hybrid Operation: Manual-electric convertibility for dual-mode lifting
