WT4.0 4 Ton Class Spider Crane
WT4.0: 4 t class, rated 3.95 t at 1.3 m, 4–11.6 m telescopic boom, 12.5 m lifting height and 3,550 kg machine weight.
Per machine. Excludes tax, optional equipment and freight.
Mechanical valve + wireless remote included
- Transport width must be confirmed before access planning.
Detailed specifications
Rated capacity, reach and access dimensions must be checked together. Imperial values in brackets are unit conversions.
Lifting performance
| Capacity class | 4 t (8,818 lb) |
|---|---|
| Rated load at radius | 3.95 t (8,708 lb) at 1.3 m (4.3 ft) |
| Boom length | 4–11.6 m (38.1 ft) |
| Maximum lifting height | 12.5 m (41 ft) |
| Maximum working radius | 11.6 m (38.1 ft) at 0.2 t (441 lb) |
| Load chart | Supplied with the confirmed configuration |
| Below-ground lifting depth | To be confirmed |
Boom, winch and rotation
| Boom profile | Pentagonal |
|---|---|
| Boom system | Automatic five-section telescopic boom |
| Hook lifting speed | 12 m (39.4 ft)/min, four-part reeving |
| Wire rope | Ø12 mm × 50 m (164 ft) |
| Boom angle | 0–80° |
| Slewing | 360° continuous / 2.1 rpm |
| Telescoping time | 25 s / 20 s fast mode |
| Luffing time | 18 s / 16 s fast mode |
Power and controls
| Electric motor | 5.5 kW (7.4 hp) |
|---|---|
| Motor type | Three-phase AC asynchronous motor |
| Working voltage | 380 V / 50 Hz |
| Engine | Yunnei 490 |
| Engine output | 37 kW (49.6 hp) |
| Engine emission specification | China Stage II engine; destination compliance to be confirmed |
| Fuel | Diesel |
| Starting | Electric start |
| System voltage | 24V |
| Control | Mechanical valve + wireless remote control |
Tracks, outriggers and transport
| Travel | Hydraulic motor drive |
|---|---|
| Travel speed | 0–2.5 km/h, forward and reverse |
| Gradeability | 20° |
| Undercarriage | Rubber crawler |
| Track ground contact | 1,900 mm contact length; 300 mm rubber tracks |
| Ground pressure | 49.0 kPa (0.50 kgf/cm²) |
| Outriggers | Manual rotation, hydraulic extension, manual grounding |
| Outrigger span | 5,200 mm lateral × 5,300 mm longitudinal |
| Transport dimensions | Length 4,200 mm; height 1,750 mm; width to be confirmed |
| Machine weight | 3,550 kg (7,826 lb) |
The class designation is not a load chart. Lift only within the rated chart for the selected boom, radius and outrigger configuration. Travel gradeability does not specify a permissible lifting slope.
Controls and optional equipment
Choose one control package and one load-moment package. Remote-dependent options become available after remote control is included.
USD sales prices exclude tax and freight. The total is the sum of the displayed line prices. Configuration changes may require a revised load chart; the final quotation confirms the complete specification.
Check your working conditions
| Site condition | Selection check |
|---|---|
| Load and radius | 3.95 t rated load at 1.3 m; confirm the load chart at the required working radius. |
| Height | 12.5 m listed maximum lifting height; allow for the hook, rigging and the load dimensions. |
| Access and transport | Confirm transport width before selecting a route through doors, corridors or lifts. |
| Floor and ground | 3,550 kg listed machine weight; check floor capacity and outrigger reactions with the site engineer. |
| Electrical supply | Confirm the 380 V three-phase supply, frequency and connection before using the electric motor. |
| Destination requirements | Engine documentation and complete-machine compliance must match the destination market and ordered configuration. |
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Product questions
What does the base price include?
The base configuration includes a mechanical valve and wireless remote control. Optional proportional control, load-moment equipment and other upgrades are priced separately. Tax, freight and destination charges are excluded.
Is the class designation the lifting capacity at every radius?
No. WT4.0 is a 4 t class machine with a listed rated load of 3.95 t at 1.3 m. Capacity changes with reach, boom and outrigger configuration. Request the applicable load chart before selecting a machine.
Can the crane work indoors?
The listed electric motor can be used where the required three-phase supply is available. Check door width, transport height, floor rating, ventilation and outrigger loads before planning an indoor lift. Do not run a combustion engine in an enclosed working area.
Can you quote delivery to my country?
Yes. Send the destination country and port together with the required configuration. The quotation confirms equipment price, tax treatment, packing, freight, engine documentation and delivery arrangements.
How are optional configurations confirmed?
Select one control package and one load-moment package, then any compatible additional options. Remote-dependent packages require remote control. Changes to the engine or boom are confirmed with a revised specification and load chart before ordering.
Tell us about your lift
Your selected configuration and its USD price are attached to the inquiry when this model remains selected.
- Heaviest load and working radius
- Lifting height, access width and floor rating
- Destination country and port
- Engine choice and electrical supply
The final quotation confirms configuration, load chart, destination requirements, tax and delivery charges. Warranty and lead time are confirmed before ordering.
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