Custom Heavy-Duty Dual-Wheel Shipping Container Casters

The AstraRoll Technical Advantage

Mobilizing a 40-ton steel box requires extreme structural integrity and specialized pivot engineering:

Integrated ISO Twist-Lock: Rapid deployment is key. The twist-lock top plate perfectly matches ISO 1161 corner fittings. It locks and unlocks manually, allowing your ground crew to attach the wheels and mobilize a container in minutes without specialized tools.

Dual-Wheel Architecture: When turning a massive load, a single, wide wheel creates massive "scrub radius" friction, often binding or tearing the polyurethane tread off the core. Our dual-wheel design allows the two wheels to rotate at slightly different speeds during a pivot, drastically reducing steering resistance and preventing tread delamination.

Massive Thrust Bearings: The swivel head of a standard caster will shatter under 10 tons of pressure. We utilize heavy-duty tapered roller thrust bearings in the swivel yoke. This absorbs the extreme axial (downward) and radial (side-to-side) forces during towing, ensuring the caster can still swivel freely under maximum payload.

High-Tear Polyurethane: We utilize premium hot-cast liquid polyurethane. It provides the necessary elasticity to absorb minor floor impacts and protect warehouse concrete from being pulverized, while maintaining the rock-hard structural integrity needed to support multi-ton payloads.

Key Specifications

Please note: AstraRoll heavy-duty casters are manufactured to order based on your specific payload and towing speed requirements.

Wheel Diameter (O.D.): 200mm (8"), 250mm (10"), 300mm (12"), or custom.
Wheel Width (Tread Face): Dual 75mm (3") or Dual 100mm (4") wheels per caster.
Dynamic Load Capacity: 2,500 kg to 12,000 kg per caster (Set of 4 carries 10t to 48t).
Swivel Head Assembly: Drop-forged steel plate with CNC-machined raceways and grease zerks.
Operating Speed: Designed for slow-speed towing (Max 3 to 5 km/h).

Why Choose AstraRoll?

1. Complete Mobilization Systems

We don't just supply individual wheels. AstraRoll provides complete turnkey mobilization kits. A typical heavy-towing set includes four Twist-Lock Casters (often equipped with heavy-duty Directional Locks to keep the rear wheels tracking straight) and a massive custom Container Tow Bar (集装箱牵引杆) that locks into the front corner castings, allowing you to hook the container directly to a terminal tractor or heavy forklift.

2. Engineered for Towing Safety

Towing multi-ton loads is incredibly dangerous if the caster kingpin fails. AstraRoll eliminates the traditional bolted kingpin. Instead, we utilize an integrally forged kingpin welded deeply into the heavy 12mm+ thick top plate, ensuring the swivel head will never shear off during emergency stops or tight turns.

Frequently Asked Questions (FAQs)

Q: Can I use these casters to tow a container on the highway or public roads?
A: Absolutely not. These are industrial casters designed strictly for slow-speed, off-highway staging and intra-facility movement (Max speed 3 to 5 km/h). Towing at high speeds will cause the polyurethane to melt from internal hysteresis heat and the bearings to fail catastrophically.

Q: Are these casters suitable for rough dirt, gravel, or muddy terrain?
A: No. Polyurethane wheels have very little ground clearance and zero flotation. They are engineered specifically for hard, relatively smooth surfaces like polished concrete, factory floors, or paved asphalt tarmac. If you need to mobilize a container through deep gravel or dirt, you must use our Pneumatic or Foam-Filled Container Hub Hubs.

Q: Do I need four swivel casters, or a mix of swivel and rigid?
A: Because containers are moved using a tow bar connected to a tractor, we highly recommend utilizing four Swivel Casters equipped with 4-way Directional Locks. This allows you to lock the two rear casters in a straight (rigid) position for stable, high-control towing, while keeping the front two in swivel mode for steering. When parking, you can unlock all four to easily push the container sideways into tight spaces.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.