20 Ton LHB Type Explosion-proof Overhead Crane, 27m Span
$68000.00 1 set
Qingdao Shanghai
L/C T/T
New
LHB
CE, ISO9001:2000
Yongtong
General manufacturing
Key Features
Explosion-Proof Components:
Motors: Fully enclosed, spark-resistant motors (e.g., ExdII BT4/CT4 rated) with Class B/F insulation and IP44/IP54 protection.
Controls: Explosion-proof pendant controls, limit switches, and junction boxes.
Structural Safety: Spark-proof treatments on trolleys, gears, and brakes to prevent friction-induced sparks.
Lifting Capacity & Performance:
Capacity: 0.25–320 tons (standard models: 0.5–50 tons; heavy-duty up to 320 tons).
Lifting Speed: 0.8–8 m/min (dual-speed options for precision).
Span: 3–50 meters (customizable for industrial layouts).
Lifting Height: 3–100 meters (adjustable for vertical workflows).
Certifications & Standards:
Complies with ATEX, IECEx, FEM, and DIN standards.
Temperature classifications: T1–T6 (supports ambient temps from -25°C to +40°C).
Explosion-proof grades: ExdII BT4, ExdII CT4 (suitable for Zones 1/2).
Technical Specifications
| Parameter | Range/Details |
|---|---|
| Lifting Capacity | 0.25–320 tons |
| Span | 3–50 meters |
| Lifting Speed | 0.8–8 m/min (dual-speed) |
| Traveling Speed | 10–63 m/min (trolley); 16–110 m/min (crane) |
| Power Supply | 3-phase, 380V, 50/60Hz |
| Work Duty Class | M3–M8 (ISO 4301-1) |
| Ambient Conditions | -25°C to +40°C; humidity ≤85% |
Applications
Oil & Gas: Loading/unloading in refineries and offshore platforms.
Chemical Plants: Handling corrosive or flammable materials.
Mining: Transporting minerals in dust-laden environments.
Pharmaceuticals: Safe operations in solvent-heavy facilities.
Food Processing: Compliance with hygiene and safety in ethanol zones.
Design & Safety
Motors: Cast aluminum enclosures to contain internal explosions; heat dissipation to prevent overheating.
Wiring: Rubber-sheathed copper cables with grounded cores; no exposed joints.
Brakes: Spark-resistant materials and heat-dissipating designs.
Control Systems: PLC automation with variable frequency drives (VFDs) for smooth acceleration/deceleration.
Comparison: Popular Models
| Model | Capacity | Span | Explosion Class | Key Use Case |
|---|---|---|---|---|
| BCD Hoist | 0.5–50t | 3–100m | ExdII BT4 | Workshops, ports |
| LB Single Girder | 1–20t | 7.5–28.5m | ExdII CT4 | Small factories |
| NUCLEON Double Girder | 1–75t | 10–40m | ExdII CT4 | Petrochemical plants |
| ATEX OHETC | 0.5–320t | 1–30m+ | Zone 1 EExd IIC T3 | Offshore, heavy industry |
Manufacturer Recommendations
DJCRANES: For standardized BCD hoists with modular reducers (up to 50t).
Nante Crane: Custom solutions with advanced heat dissipation and T6 compliance.
Hoist & Winch: ATEX-certified cranes for extreme environments (up to 320t).
Finework Cranes: Compact HB/BMD hoists for corrosive/acidic settings.
Cost & Maintenance
Initial Cost: $15,000–$500,000+ (varies with capacity and certifications).
Maintenance: Regular inspection of gears, wiring, and explosion-proof seals; replace wire ropes every 1–2 years.
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