Spring Loaded Casters 5" 6" 8" Cast Iron Core Polyurethane Shock Absorber Caster Wheel

Product Description

Product Recommendation

Product Description

Spring Loaded Casters 5" 6" 8" Cast Iron Core Polyurethane Shock Absorber Caster Wheel 

Key Features

1. Shock absorber spring load suspension technology—makes uneven surfaces feel as smooth as a flat road

The built-in high-strength spring load and shock absorber suspension system effectively absorbs ground impacts and vibrations. When crossing thresholds, speed bumps, gravel roads, or railroad crossings, the wheels compress and extend to cushion the impact, keeping the cart stable and bump-free to protect delicate cargo from damage.

2. Iron Core + PU Dual Structure: A Perfect Balance of Rigidity and Flexibility
The wheel core is made of high-strength cast iron, offering impact resistance and resistance to deformation, providing a solid load-bearing framework; the outer wheel is made of red polyurethane (PU), which is highly elastic, quiet, and leaves no marks.
Both components are molded as a single unit, ensuring no delamination or separation. The iron core structure makes the wheel more resistant to high temperatures and heavy loads, while the PU tread protects the floor.

3. Heavy-Duty Load Capacity: Up to 400 kg per Wheel
Specifically designed for heavy-duty industrial carts, dock hand trucks, mold transport carts, and outdoor equipment, each wheel supports a dynamic load of 320–400 kg, with a total load capacity of 1.2 tons for a set of four wheels, effortlessly handling heavy cargo. The frame is stamped from ≥6mm thick steel plate, fully galvanized for rust prevention, and passes a salt spray test of ≥72 hours, withstanding humidity, oil, and outdoor exposure to rain.

4. PU wheels are quiet and leave no marks, protecting high-end flooring
Tested noise level ≤65dB, reducing noise by over 70% compared to metal wheels; the red and orange wheel surfaces provide a striking visual warning, enhancing workplace safety.

Application

This industrial spring caster is specifically suited to the operational realities of logistics and production :

1. Electronics & Precision Assembly: Ideal for mobile racks transporting delicate PCB boards or LCD panels where shock absorber caster action prevents micro-fractures from vibration.

2. Cold Chain & Perishable Logistics: Reduces "jounce" in reefer trucks and warehouse trolleys, preventing damage to stacked fresh produce or fragile packaging during transit.

3. Heavy-Duty Fabrication: Moving steel components or dies within a workshop; the spring loaded system spares the frame of the cart from fatigue cracking.

4. Automotive Parts Handling: Smooth transport of tier-1 components over standard industrial grating and floor drains.

Specification

Technical Specifications

Wheel Diameters Available: 5 Inch (125 mm), 6 Inch (150 mm), 8 Inch (200 mm)
Tread Material: High-grade Polyurethane (PU)
Wheel Core Material: Heavy-duty Solid Cast Iron
Suspension System: Heavy-Duty Spring-Loaded Shock Absorber
Bracket Material: Forged Carbon Steel (Zinc-plated)
Type Options: Swivel Caster, Swivel with Total Lock Brake
Bearing Type: Precision Double Ball Bearings
Load Capacity: 300 kg to 400 kg per caster depending on wheel size

Wheel Material	Pu+iron core
Wheel Diameter (mm)	125(5 inch)	150(6 inch)	200(8 inch)
Wheel Width (mm)	50	50	50
Per Wheel Load (kg)	330	380	400
Setting height (mm)	192	200	240

Company Profile

About Benyu Caster

- Benyu is the professional manufacturer of casters & wheels since 2005,which offering Furniture Castors and Industrial Castors.

- Direct quality supplier of the world's Top 500 enterprises.

- High quality caster manufacturers audited by social responsibility (RESA) / Quality System (QSA) / SCAN SECURITY AUDIT (CTPAT) every year. It has remained above 90 points.

- A complete production chain with various casters and wheels. (Injection - Pouring & Foaming -Tooling - Stamping - Welding - Power Spraying - Riveting - Assembly. )90% of the production is automated. Greatly improve production efficiency and reduce the ratio of defective products.

- Perfect castor test equipment. (Walking - Salt spray - Static Pressure - Drop Test- Wear resistance -Furniture wheel durability testing. )Let the products have always maintained high quality shipping standards,to win the trust and support of customers.

- Free samples can be offer.

Packing & Delivery

Certifications

FAQ

1) Q:Are you the manufacturer?

A:Yes,we are one of the most professional caster manufacturers in China.And we could also export by ourselves. 

 

2) Q:May I visit your factory?

A:It is our honor to invite you to visit.It takes 1 hour from Baiyun Airpot to our company by car.
 

3) Q:Do you sell any products to overseas?

A:Yes,our products are sold well in USA,Canada,Brazil,Panama,Sweden,U.K,Bulgaria,Czech,Ireland,Libya,Saudi Arabia,Japan,Malaysia,Thailand,Philippine,Singapore,South Africa,ect.OEM and ODM are offered.  

 

4) Q:Can you arrange sample for us to check your quality?

A:It is our pleasure.Please inform us your contact information,we will send you sample within 3-7 days depend on your request.

 

5) Q:May I know which company you have cooperated with?

A:Harbor Freight Tools(from USA),Kingfisher(From England)