منتجات
The 20 ton overhead crane is a key piece of heavy-duty lifting equipment widely used in steel processing, machinery manufacturing, shipbuilding, mining, and large warehouses. At this capacity level, both single girder and double girder configurations are available, giving buyers the flexibility to match the crane type to their building structure, cycle frequency, and headroom conditions.
Compared to lighter cranes, a 20-ton unit demands greater attention to working duty classification, bridge stiffness under full load, and the selection of a control mode that suits the operation environment. Dafang offers a full lineup of 20-ton models—from economical single-girder wire rope hoist cranes to heavy-duty metallurgical and specialized process cranes—covering virtually every industrial application.
| المعلمة | Range |
|---|---|
| قدرة الرفع | 20 Ton (main hook); optional auxiliary hook |
| فترة | 10.5–31.5 m (custom up to 40 m) |
| ارتفاع الرفع | 6–30 m |
| واجب العمل | A4–A7 (light to very heavy duty) |
| يتحكم | Pendant / Wireless Remote / Cab |
| مزود الطاقة | 380V / 50Hz, 3-phase (custom voltages available) |
| Standards | GB/T 14405, FEM 1.001, EN 13001, CE, ISO 9001 |
التطبيقات:
Maintenance workshops, machine assembly bays, warehouses with moderate lift frequency, power station auxiliary equipment handling.
Key features:
التطبيقات:
General manufacturing plants, logistics centers, assembly workshops, situations where headroom is limited but span exceeds 22.5 m.
Key features:
التطبيقات:
Small-to-medium petrochemical facilities, paint booths, solvent storage areas, LNG auxiliary equipment bays, flour mills, pharmaceutical production.
Key features:
التطبيقات:
General manufacturing workshops, steel structure fabrication, auto assembly plants, large warehouses, precast concrete yards.
Key features:
التطبيقات:
Automotive manufacturing, precision machining, aerospace component handling, tool-and-die shops.
Key features:
التطبيقات:
Petrochemical plants, paint shops, LNG facilities, ammunition manufacturing, coal handling facilities, flour mills.
Key features:
التطبيقات:
Scrap metal yards, coal handling at power plants, bulk cement terminals, slag handling in steel mills, stone quarry stock management.
Key features:
التطبيقات:
Steel plate warehouses, scrap yards, rebar handling, steel service centers, foundry input handling.
Key features:
التطبيقات:
Steel mill converter charging spans, refining spans, continuous casting spans, foundry casting operations, molten iron and molten steel ladle transfer, non-ferrous metal smelting.
Key features:
Step 1 — Determine working duty (cycle frequency)
| Daily Lift Cycles | فئة الواجب | Recommended Type |
|---|---|---|
| < 30 cycles | A3–A4 | LD Single Girder |
| 30–100 cycles | A4–A5 | LD, LH, QD |
| 100–200 cycles | أ5–أ6 | QD, QDXX European, QC Magnetic |
| 200–500+ cycles | أ٦–أ٧ | QZ Grab, QDY / YZ Metallurgy |
Step 2 — Check span and headroom
Step 3 — Identify special environmental requirements
| Condition | Recommended Model |
|---|---|
| Flammable / explosive atmosphere | QB (double girder) or LB (single girder) |
| Bulk loose material handling | QZ Grab Bucket |
| Ferromagnetic plate / bar / billet | QC or QCL Electromagnetic |
| Steel mill / foundry / high-temperature | QDY or YZ Metallurgy |
| Precision manufacturing, smooth control | QDXX European double girder |
| Standard industrial environment | QD or LH |
Step 4 — Control mode
Prices depend on type, span, lifting height, working duty, and optional equipment. The table below provides indicative budget ranges based on standard configurations, ex-works (EXW) from Henan, China.
| الطراز | التكوين | Approx. Price Range (USD) |
|---|---|---|
| LD Single Girder | Span 7.5–30 m, H 6–18 m, pendant | $4,800 – $14,550 |
| LH Electric Hoist Double Girder | Span 7.5–30 m, H 6–24 m, pendant / remote | $15,500 – $32,500 |
| LB Explosion-Proof Single Girder | Span 7.5–22.5 m, H 6–12 m, ExdIIB | $9,000 – $35,000 |
| QD / QDXX / QC / QZ / QDY Double Girder (standard) | Span 7.5–21 m, H 6–18 m, remote | $35,500 – $45,400 |
| QD / QDXX / QC / QZ / QDY Double Girder (large span) | Span 25.5–30 m, H 18–30 m, cab | $51,500 – $58,500 |
| QB Explosion-Proof Double Girder | Span 10.5–28.5 m, ExdIIB, remote / cab | $50,000 – $120,000 |
| QDY / YZ Metallurgy | Span 10.5–31.5 m, high-temp, cab | $55,000 – $130,000 |
All prices are indicative and subject to change based on steel prices, project specifications, and delivery requirements. Contact us for a project-specific quotation.
Main factors affecting price:
20+ Years in Heavy Crane Manufacturing Henan Dafang Heavy Machine Co., Ltd. has manufactured overhead cranes since 2006. The 20-ton product line has been installed in over 60 countries across Southeast Asia, the Middle East, Europe, and Africa.
Full In-House Production Design, fabrication, and testing are all performed at our own facility in Henan, China. Main girders are produced using CNC plate cutting, sub-arc welding, and ultrasonic weld inspection. We do not outsource structural fabrication.
Factory Acceptance Test at 110% Rated Load Every 20-ton crane is load-tested at 22 tons before shipment. Test reports and load certificates are included with every delivery.
Global Aftersales Support Spare parts (hoist motors, brakes, wire rope, drums, wheels) are stocked for dispatch within 48 hours. On-site commissioning teams are available in major export regions. Remote diagnostics are available for PLC-equipped cranes. Standard warranty: 12 months from commissioning on structure, electrical, and mechanical components.
شهادات CE (Machinery Directive 2006/42/EC), ISO 9001:2015, GB/T 14405, CUTR / EAC (Russia/CIS), FEM 1.001, EN 13001. ASME B30.2 documentation available on request.
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