Product Introduction
Our square caster sockets are impact-resistant PP inserts designed to securely fix casters inside square metal tubing, providing stable adapter support, reduced noise, and reliable compatibility with friction-ring and pin-stem caster systems.
Technical Specifications
Core Technical Specifications
|
Parameter |
Specification (Standard Square Matrix) |
|
Body Material |
High-Density Recycled Polypropylene (Black PP) |
|
Applicable Tube Thickness |
18–22 Gauge (≈ 0.8 mm - 1.3 mm) |
|
Mounting Type |
Direct Push-In Tube Mount / Core Pin Adaptable |
Square Tube Outside Dimension
|
Outside dimension of the tube |
Hole Dimension |
|
18mm / 0.709 inch |
8mm / 0.315 inch |
|
20mm / 0.787 inch |
8mm / 0.315 inch |
|
25mm / 1 inch |
8mm / 0.315 inch |
|
25mm / 1 inch |
9.5mm / 0.374 inch |
|
25mm / 1 inch |
11mm / 0.433 inch |
Product Features
Shock-Absorbing Rib Profile: Formed with external flexible ribbed fin levels that compress dynamically into square iron pipes, establishing a high-friction fit that prevents sliding or rotational play.
Integrated Floor Protection & Muting: The tough polymer base edge provides an immediate barrier between rough steel cuts and floor finishes, effectively absorbing transit rattle and operational noise.
Fracture-Resistant Polypropylene: Utilizing high-grade impact PP chemistry that resists splitting or cracking under heavy tool-assisted installations or structural weight loads.
Quality & Compliance
Strict Dimensional Gauge Control
Every batch run is checked to ensure internal core diameters (8mm, 9.5mm, 11mm) accept standard caster stems flawlessly without structural play.
Industrial Fatigue Longevity
The high-purity black PP formulation resists stress-cracking when exposed to temperature shifts, maintaining its internal friction fit under multi-year use cycles.
Eco-Friendly Manufacturing Standard
Manufactured completely with eco-friendly recycled polymers, complying with global international environmental directives.
Installation Guide
Packaging & Logistics
Minimum Order Quantity (MOQ): 5,000 pieces per specific structural box specification.
Industrial Export Packing: Standard export cartons or customized industrial packaging tailored to secure bulk density and shield components from transit friction.
Trade Terms: FOB Taiwan, China.
Payment Method: T/T.
Production Delivery Lead Time: Approximately 45 to 60 working days for mass standard manufacturing runs.
FAQ
Q: What materials are the square caster sockets made from?
A: They are injection molded from high-quality recycled polypropylene (PP), offering excellent impact resistance, durability, and long-term performance.
Q: What types of square tubes are compatible with these caster sockets?
A: They are designed for standard square metal tubes with 18–22 gauge wall thickness. Please refer to the size chart for compatible dimensions.
Q: What caster stem sizes are available?
A: Standard socket hole sizes include 8 mm, 9.5 mm, and 11 mm. Custom dimensions are also available for OEM projects.
Q: Are the sockets easy to install?
A: Yes. The push-in ribbed design allows fast installation without adhesives or special tools while providing a secure fit inside the tube.
Q: Can these sockets reduce caster wobbling and noise?
A: Yes. The precision-fit ribbed structure helps stabilize the caster, reducing movement, vibration, and operating noise.
Q: What applications are these square caster sockets suitable for?
A: They are widely used in office furniture, hospital equipment, display racks, shelving systems, carts, tables, and industrial frames.
Q: Can you provide customized sizes, colors, or materials?
A: Yes. We offer OEM and ODM services, including customized dimensions, colors, materials, and packaging solutions.
Q: What is the minimum order quantity?
A: The standard MOQ is 5,000 pieces per size. Please contact us for customized project inquiries.
Q: How do I select the correct square caster socket?
A: Simply provide the square tube dimensions, wall thickness, and caster stem diameter, and we will recommend the most suitable model.
Q: What support do you provide for OEM and wholesale customers?
A: We provide sample evaluation, technical consultation, custom mold development, production scheduling, and export support for long-term business partners.
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