Overview

Basic Info

• Model NO. B31
• Rotary Rotary
• Armrest With Armrest
• Folded Unfolded
• Customized Customized
• Condition Used
• Weight Capacity 150 Kg
• Gas Lift Class 4 BIFMA
• Application Home Office, Gaming, Meeting Room, Study Room, Apartment
• Base Nylon Base / Aluminum Alloy Base Optional
• Lumbar Support 2D Adjustable Lumbar Support
• Headrest 2D Adjustable (Height & Angle)
• Backrest Material Breathable Mesh with Nylon Frame
• Seat Material High-Density Injected Molded Foam + Fabric / Mesh
• Casters Silent PU Casters, Suitable for Wooden Floor & Carpet
• Net Weight 23 Kg
• Gross Weight 25 Kg
• 40'HQ Qty 432 PCS
• 20GP Qty 180 PCS
• OEM/ODM Available (Logo, Fabric, Color, Carton Design)
• Color Options Black, Grey, Blue, Green, Customized
• Transport Package 1PCS/CTN
• Specification 75*38*64
• Trademark ZHONGFA/OEM
• Origin Foshan, Guangdong, China
• HS Code 9401300000
• Production Capacity 700000 PCS/Year

Packaging & Delivery

• Package Size 75.00cm * 38.00cm * 64.00cm
• Package Gross Weight 25.000kg

Product Description

Ergonomic Mesh Office Chair B31 – All-Day Comfort & Lumbar Support

Office workers, gamers, remote professionals, and anyone seeking affordable ergonomic seating.

Specification

• Model: B31
• Overall Height: 116 - 138 cm
• Headrest: 2D Adjustable Headrest
• Armrest: 3D Nylon Armrest
• Mechanism: Multi-angle tilt with tension control
• Base: 350mm Aluminum
• Gas Lift: Class 3 / BIFMA Certified
• Caster: 60mm PU Caster
• Swivel: 360°
• Product Weight: 22 KG
• General: Whole Chair BIFMA standards
• Shipping Weight: 25 KG
• Logo: Customizable
• Plastic Seat Cover: Have
• Maximum Load Capacity: 150 KG / 330 lbs
• Assembly: Required, tools included

Packing & Delivery

Company Profile

FAQ

Frequently Asked Questions

• Q1: How are the armrests adjustable?
• A1: Our 3D armrests adjust in three ways: Up/Down (~12cm range). Forward/Backward (~5cm range). Pivot Left/Right (~34-degree angle). You can unlock all dimensions to find the perfect elbow support.
• Q2: How does the recline function work? Will it tip over?
• A2: There are typically two levers on the right side: one for height adjustment and another for recline control. The recline function allows you to lock at any angle or adjust the tilt tension with a knob to match your weight. It is designed to be safe and will not tip over suddenly.
• Q3: Is the mesh durable? Will it sag over time?
• A3: We use high-elasticity, high-strength Tesla mesh that undergoes rigorous durability testing. It is highly resistant to stretching and sagging, providing firm support for a long time.
• Q4: What is the seat cushion made of? Will it flatten out?
• A4: The seat is made of one-piece injected molded high-resilience foam, not low-quality recycled foam. This material is high-density and has excellent rebound, ensuring it maintains its shape and provides even pressure distribution for long-term comfort.
• Q5: Is the gas lift safe?
• A5: Safety is our top priority. The chair is equipped with a BIFMA/SGS certified Class-3 gas lift, which has passed rigorous explosion-proof tests. It is completely safe to use.
• Q6: What is your warranty policy?
• A6: We offer 5-year warranty on the frame, 3-year on the gas lift, and 2-year on components. During the warranty period, we will replace or repair any non-man-made defects free of charge.