Auditorium chair

Model specifications: 

ladder desk and chair W800*H850 (split back: two people L1075, three people 1595, four people 2115).

Desk and chair materials, crafts

The product is mainly divided into four major parts: the chair foot; the beam; the chassis; the seat, the back, the writing board.

1, metal parts: (standing pipe)

1.1 Chair foot: The riser (80*35*1.8mm long round tube) is formed on the punching machine and hydraulic machine after cutting. It is protected by carbon dioxide welding, and the welding is beautiful and not deformed. After being polished, it is sprayed with spray plastic powder. The back of the chair forms an 8 degree angle with the legs, which is ergonomic. The back is added for comfort and sedentary is not too tired.

1.2 Beam: After being cut by 80*40*2.5mm square tube, punch it on the punching machine and spray the surface.

1.3 Chassis: It is stamped and stretched from 3mm and 6mm iron plates. It is equipped with galvanized shaft and sleeve, and imported wire-wound tension spring (¢12*2.0). It can be flipped freely over 50,000 times without damage, no noise. . The seat plate on the chassis can be subjected to force ≥ 4900 Newtons or more.

Material selection --- cutting, stamping, welding, grinding --- inspection --- pickling and spray --- installation --- inspection --- packaging.

2, wood production

The seat plate (445*405*16mm) is embedded with four M6 hardware pieces and the back board (450 high * 11mm thick) are all hot-pressed on the hydraulic machine using multi-layer wooden splint (the outermost layer is 2mm imported splint). Elm fire board, PVC edge banding. Activity board 455*292*10; (fixed writing board 325 wide * 15mm thick, lower board 290 width * 15mm thick) are hot-formed on the imported hot press using multi-layer wood splint, surface fireproof board finish It is made of PVC after sealing. The binders, solvents and paints used are all green and environmentally friendly materials. They are free of benzene and no odor. The formaldehyde content is in line with national standards and is harmless to the human body.

3, plastic parts (writing board secondary positioning card slot, writing board plastic bracket)

Using reinforced plastic, cold and abrasion resistant are injection molded from injection molds on imported injection molding machines.

The second positioning card slot of the writing board prevents the writing board from suddenly slipping and strengthens the stability of the writing board.

Performance (mechanical damping slow recovery)

The writing plate can be rotated in a horizontal and vertical state with a small external force. The stationary state of the writing plate is close to vertical. When it is used, it is flattened by a small external force. When the external force is retracted, it can automatically rebound slowly, without noise, without Shock. When the chair is retracted, the occupied space is small, and the humanized design fits the user's various needs. All the connecting screws are carburized and hardened. The feet and the ground are firmly connected with Ø12mm explosive glue and M6*60mm self-tapping wire, which is durable and has no swaying feeling.

Fourth, the reference map (can be done on the wooden back, steel mesh back, and velvet, fixed write board)