Overview of ZOKECRANE Crane End Carriage Assemblies
Manufactured by Henan Zoke Crane Co., Ltd., ZOKECRANE crane end carriages are fabricated from high-strength rectangular steel tube profiles or welded box girders. Outfitted with forged alloy steel wheels, heavy-duty spherical roller bearings, and direct-drive three-in-one motor reducers, our end trucks accommodate single girder top-running, double girder top-running, and underhung suspension crane configurations for safe working loads ranging from 1 ton to 50+ tons.
Key Technical Specifications & Parameters
| Technical Parameter | End Carriage Specification |
|---|---|
| Product Type | Single Girder / Double Girder Top-Running End Truck, Underhung Suspension End Carriage |
| Matching Crane Capacity (SWL) | 1 Ton to 50+ Tons (Custom heavy-duty wheel block configurations available) |
| Wheel Diameter Range | Ø160 mm, Ø200 mm, Ø250 mm, Ø315 mm, Ø400 mm, Ø500 mm |
| Wheel Base (Center Distance) | 1,200 mm to 4,500+ mm (Custom engineered according to crane span) |
| Wheel & Structure Material | Q355B welded box girder / rectangular tube; 42CrMo or 65Mn forged steel wheels |
| Drive System | 3-in-1 geared motor unit (Motor + Gearbox + Electro-hydraulic/disc brake) |
| Travel Speed | 5 to 40 m/min (Stepless speed regulation via frequency inverter / VFD) |
| Connection Method | High-tensile bolt connection plates (Grade 10.9) for easy girder mounting |
| Certifications & Standards | ISO 9001 Quality System, CE Certified, SGS Verified, FEM/DIN Compliant |
Core Product Advantages & Engineering Features
- Modular Box Structure Rigidity: Built using automated CNC-bored rectangular tubes or robot-welded steel box girders to ensure exact wheel alignment and structural stability.
- Forged Alloy Steel Wheels: Deeply quenched and tempered forged steel wheels (65Mn / 42CrMo) eliminate flange wear and extend crane runway rail life.
- Soft-Start Three-In-One Drives: Integrated motor-gearbox-brake drive units provide smooth acceleration and soft braking, eliminating load sway during bridge travel.
- Precision Machining & Easy Bolt Mounting: Bored in a single setup on large CNC milling machines to guarantee perfect parallel axle alignment and zero wheel gnawing.
Industrial Applications of Crane End Carriages
ZOKECRANE crane end carriages and travel wheel blocks are core structural components utilized across diverse overhead handling applications globally:
1. Single & Double Girder Overhead Cranes
Serves as the main traveling mechanism for top-running overhead cranes in steel fabrication shops, machine manufacturing bays, and warehouses.
2. Underhung & Suspension Workstation Cranes
Compact underhung end carriages mounted on bottom flanges of roof I-beams for flexible assembly workstation cranes.
3. Gantry & Semi-Gantry Cranes
Ground-traveling end trucks fitted with rail sweepers and storm anchors for outdoor gantry cranes and semi-gantry crane legs.
4. Crane Modernization & Retrofit Projects
Ideal modular replacement end trucks for upgrading old overhead cranes to modern variable-frequency drive systems.
Frequently Asked Questions (Product FAQs)
What is the difference between a top-running and an underhung end carriage?
Top-Running End Carriages travel on top of elevated runway rails supported by building columns, ideal for heavy load capacities. Underhung (Suspension) End Carriages ride on the bottom flange of roof ceiling beams, maximizing floor space in facilities without support columns.
How do ZOKECRANE end carriages prevent wheel gnawing (rail wear)?
Wheel gnawing occurs when wheel axles are not strictly parallel. ZOKECRANE machines both wheel axle bores on a giant CNC horizontal boring machine in a single clamping setup, maintaining axis parallelism within millimetric tolerances to eliminate rail friction.
Can ZOKECRANE end carriages be equipped with variable frequency drives (VFD)?
Yes. All our three-in-one drive motors are fully compatible with VFD speed control, allowing stepless acceleration, smooth creeping speeds, and reduced mechanical shock during crane startup and stopping.
What safety features are included on the end carriages?
Our end carriages are equipped with heavy-duty rubber buffers (bumpers), rail sweepers to clear debris from tracks, travel limit switch strike plates, and optional anti-drop safety lugs.
Export & Logistics FAQs for International Buyers
Which international markets does ZOKECRANE export crane end carriages to?
ZOKECRANE crane components and lifting machinery are exported worldwide, supplying crane builders and structural contractors in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other global markets.
How are crane end carriages packaged for international ocean freight?
End carriage structural beams receive protective anti-corrosion primer and finish paint. Machined connection plates, wheel treads, and three-in-one drive motors receive anti-rust grease, vacuum plastic wrapping, and are packaged in heavy-duty export-standard fumigated wooden cases.
What quality test reports and certifications accompany ZOKECRANE end carriages?
Every shipment is accompanied by a complete quality control package, including ISO 9001 compliance, European CE certificates, EN 10204 3.1 Material Test Reports (MTR) for steel and wheels, weld inspection reports, and SGS verification upon request.
What shipping terms and manufacturing lead times do you offer?
We support standard international commercial terms including FOB, CIF, CFR, DDU, and DDP. Standard modular end carriages are kept semi-finished with fast lead times of 10 to 15 business days; custom wheel base or heavy-duty end truck assemblies take 20 to 25 business days.
Does ZOKECRANE provide connection engineering for matching our main girders?
Yes. Our engineering department provides CAD structural connection drawings, bolt torque specifications, and girder mounting hole layouts to ensure our end carriages bolt onto your local crane main girders seamlessly.