- Capacity 1–50 t
- FEM 1Am / 2m / 3m · ISO M4–M6
- Reeving 2/1, 4/1 or true vertical 4/2
- Two speeds or inverter control
- Hook travel up to 80 m
Hoist types
- Single-rail trolley hoist – runs on the bottom flange of a single girder or monorail (N, NR curved).
- Low-headroom hoist – counterweight (LC) or balance wheel (LB) design for maximum hook height under single girders.
- Double-rail trolley hoist – for double girder cranes (DU parallel / DX perpendicular).
- Stationary (foot-mounted) hoist – fixed lifting points and winches (F).
- Chain hoists – for light loads and workstations.
Standard products
| Capacity (kg) | FEM | ISO | WS frame | Reeving | V1 | V2 | H0 | H1 | H2 | H3 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1,000 | 2m | M5 | WH-205 / WH-305 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | 26 |
| 1,250 | 3m | M6 | WH-306 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 1,600 | 3m | M6 | WH-304 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 1,600 | 2m | M5 | WH-308 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 2,000 | 3m | M6 | WH-310 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 2,000 | 2m | M5 | WH-305 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 2,500 | 3m | M6 | WH-313 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 2,500 | 3m | M6 | WH-306 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 2,500 | 2m | M5 | WH-312 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 3,200 | 2m | M5 | WH-316 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 3,200 | 2m | M5 | WH-308 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 4,000 | 3m | M6 | WH-310 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 4,000 | 3m | M6 | WH-520 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | – |
| 5,000 | 3m | M6 | WH-313 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 5,000 | 2m | M5 | WH-312 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 5,000 | 2m | M5 | WH-525 | 2/1 | 8/2.6 | 12/4 | 10 | 14 | 20 | 26 |
| 6,300 | 3m | M6 | WH-732 | 2/1 | 8/2.6 | 12/1.8 | 14 | 19 | 26 | – |
| 6,300 | 2m | M5 | WH-316 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 8,000 | 3m | M6 | WH-520 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 8,000 | 2m | M5 | WH-740 | 2/1 | 8/2.6 | 12/1.8 | 13 | 18 | 25 | 32 |
| 10,000 | 2m | M5 | WH-525 | 4/1 | 4/1.3 | 6/2 | – | 7 | 10 | 13 |
| 10,000 | 1Am | M4 | WH-750 | 2/1 | 5.5/1.3 | 8.3/2.7 | 13 | 18 | 25 | – |
| 10,000 | 2m | M5 | WH-950 | 2/1 | 5/1.2 | 10/1.5 | – | 20 | 32 | – |
| 12,500 | 3m | M6 | WH-732 | 4/1 | 4/1.3 | 6/0.9 | 6.5 | 9 | 12.5 | 16 |
| 16,000 | 2m | M5 | WH-740 | 4/1 | 4/1.3 | 6/0.9 | 6.5 | 9 | 12.5 | 16 |
| 16,000 | 3m | M6 | WH-940 | 4/1 | 2.5/0.6 | 5/0.75 | – | 10 | 16 | 24 |
| 20,000 | 1Am | M4 | WH-750 | 4/1 | 2.8/0.7 | 4.1/1.3 | 6.5 | 9 | 12.5 | 16 |
| 20,000 | 2m | M5 | WH-950 | 4/1 | 2.5/0.6 | 5/0.75 | – | 10 | 16 | 24 |
| 20,000 | 2m | M5 | WH-1100 | 2/1 | 3/0.7 | 5/0.7 | 20 | 24 | 30 | – |
| 25,000 | 1Am | M4 | WH-963 | 4/1 | 2.5/0.6 | 5/0.75 | – | 10 | 16 | 24 |
| 25,000 | 1Am | M4 | WH-1125 | 2/1 | 3/0.7 | 5/0.7 | 20 | 24 | 30 | – |
| 32,000 | 1Am | M4 | WH-980 | 4/1 | 2.5/0.6 | 3.7/0.6 | – | 10 | 16 | 24 |
| 32,000 | 1Am | M4 | WH-980 (inverter) | 4/1 | 3.7/1 | 0.5–5.0 | – | 10 | 16 | 24 |
| 40,000 | 2m | M5 | WH-1100 | 4/1 | 1.5/0.35 | 2.5/0.35 | 10 | 12 | 15 | 22 |
| 40,000 | 2m | M5 | WH-1100 (inverter) | 4/1 | 2.5/0.8 | 0.4–4.0 | 10 | 12 | 15 | 22 |
| 50,000 | 1Am | M4 | WH-1125 | 4/1 | 1.5/0.35 | 2.5/0.35 | 10 | 12 | 15 | 22 |
| 50,000 | 1Am | M4 | WH-1125 (inverter) | 4/1 | 2/0.6 | 0.3–3.0 | 10 | 12 | 15 | 22 |
Inverter versions have stepless speed. Single-speed hoists and other speeds on request.
| Trolley type | Speed |
|---|---|
| Monorail electric trolley, standard headroom | 20/6.5 |
| Monorail electric trolley, low headroom | 20/5 |
| Double-rail trolley | 20/6 up to 16 t · 16/5 above 16 t |
Standard and optional
| Item | Standard | Optional |
|---|---|---|
| Motors | Dual-speed motors | Inverter control |
| Speeds | Standard table V1, V2 | Other speeds |
| Lifting height | 7–26 m | Up to 80 m (by capacity) |
| Power supply | 3-phase AC 400 V / 50 Hz | 415 V, 480 V, 500 V, 60 Hz |
| Control | Control panel + 6-button pendant | Radio remote, other pendants |
| Control voltage | 48 V | 24, 42, 110, 220 V |
| Temperature | −20 … +40 °C | −40 °C, +50 °C, +60 °C |
| Humidity | < 80 % | > 80 % |
| Protection | IP54 | IP65, IP66 |
| Monorail | Straight | Curved, radius ≥ 1.5 m |
| Reeving | 2/1, 4/1 | True vertical lift 4/2 |
Type code
| Field | Meaning |
|---|---|
| 5 | Capacity in tonnes |
| WH 312 | Hoist frame: size 3, drum force 12 kN |
| H10 | Hook travel, m |
| V4 | Lifting speed, m/min (50 Hz) |
| 4/1 | Reeving (rope falls) |
| M | Speed type: M micro · D double · S single · I inverter |
| LC | Mounting: F foot · N normal headroom · NR curved · LC / LB low headroom · DU / DX double-rail trolley |
| 52 | Electrical: 20 e-stop + thermal · 21 + key · 52 load limiter + e-stop + thermal · 53 + key |
| 20/5 | Trolley speed, m/min |
| F | Climate: – standard · F cold · G high temp. · T tropical · X chemical |
Duty group
Vietnam: cranes are designed, manufactured and inspected to TCVN 4244:2005 and the lifting-equipment safety regulation QCVN 07:2012/BLĐTBXH, with technical inspection before use.
Tiêu chuẩn và yêu cầu theo thị trường
Các quy chuẩn mà World Steel áp dụng để thiết kế, gia công và lập hồ sơ cho sản phẩm này – cùng các yêu cầu chính về hình học và tải trọng tại từng thị trường.
Hoa Kỳ
- CMAA 70 / CMAA 74Top-running and single girder crane specifications
- ASME B30.2 · B30.17Overhead and gantry cranes – safety
- ASME B30.16 · ASME HST-4Overhead hoists
- OSHA 1910.179Overhead and gantry cranes
- Load test
- 125 % of rated load (ASME B30.2)
Úc / NZ
- AS 1418.1Cranes – general requirements
- AS 1418.18Crane runways and monorails
- AS 2550.1Cranes – safe use
- AS 4100 · AS/NZS 1554.1Steel design and welding
- Registration
- Design and item registration per state WHS rules
Châu Âu
- EN 15011Bridge and gantry cranes
- EN 14492-2Power-driven hoists
- EN 13001 seriesCrane design – general, actions, limit states
- Machinery DirectiveCE marking of the complete crane
- Load test
- Static 125 % and dynamic 110 % per EN 15011 / EN 14492-2
Nội dung chỉ mang tính tham khảo – chỉ dẫn kỹ thuật của dự án, phiên bản quy chuẩn được áp dụng và cơ quan có thẩm quyền là căn cứ quyết định.
Hoàn thiện bề mặt
| Hoàn thiện bề mặt | Tiêu chuẩn / ghi chú |
|---|---|
| Paint | Blast cleaned, epoxy primer + polyurethane topcoat in safety yellow or project colour |
| Marking | Rated capacity and safety slogans on the girder in the client's language |
| Environment | Tropical, cold, high-temperature or chemical execution for hoists |
Câu hỏi thường gặp
What does 4/1 reeving mean?
Four rope falls on one rope end at the drum: double the capacity of 2/1 at half the lifting speed and hook travel.
Which hoist for maximum hook height?
A low-headroom (LC or LB) hoist on single girder cranes, or a double-rail trolley between the girders of a double girder crane.








