Product Type: Chair base mounting plate

Material: High-quality stamped steel

Surface Treatment: Black electroplated finish

Function: Gas lift support + tilt base

Compatibility: Fits standard office and computer chairs

Mounting Hole Distance (L): 210mm x 220mm

Inner Bolt Distance (W): 150mm x 170mm

Center Hole Diameter: Universal lift cylinder fit

Reinforcement: Central ribbed structure

Design: Ergonomic and structurally balanced

Shape: Square base with center dome

Durability: Rust-resistant electroplated coating

Safety: Thickened explosion-proof design

Installation: Pre-drilled holes for easy mounting

Load Bearing: High strength, heavy-duty

Swivel Compatibility: 360° rotation base support

Use Scenario: Gaming chairs, office chairs, task chairs

Application: Chair base and tilt mechanism support

Finish Type: Matte anti-corrosion finish

Noise: Silent operation with stable performance

OEM Support: Available upon request

Warranty: 2 years

Product Weight: Approx. 1.5kg

Maintenance: Low maintenance required

Anti-wear: Scratch and scuff resistant

Lift Compatibility: Universal gas lift cylinder

Standard: BIFMA-compliant build

Customization: Logo and design available

Construction: One-piece stamped structure

Dimensions: 220mm x 210mm outer | 170mm x 150mm inner

Explosion-Proof Base: Yes

Balance: Even load distribution across mounting area

Material Thickness: Thickened steel plate

Product Form: Flat-pack or assembled

Color: Matte black

Rotational Support: Yes

Gas Hole Reinforcement: Inner dome support

Shock Resistance: High

Brand: Weililai Hardware

Origin: China

Mount Hole Type: Slotted screw holes