1.1  Combined Push-Pull Sliding Green Boards

 Close status; Open status;  

Specifications: Outer size 4000*1300mm, adjustable as per the size of the chosen equipment, combined by 4 pcs of sliding boards. The upper and bottom tracks use the latest design of open type double-wheels and double-tracks, when the middle sliding boards are in the closed position, they will be on the same surface as the fixed boards. Adjacent frames use the design of narrow frame and same color, when the boards are in closed position, they look like a whole flat board, it is good for teacher’s smooth writing and student’s comfortable watching.

Technical parameters:

1. Panel requirement:

1) High quality original panel, entire board without joint, dark green, with protective film, good for teacher writing in order, comfortable view and eyes tiredless.

2) Thickness: ≥0.30 mm.

2. Interlayer: Use extruded polystyrene board, neither too hard nor too soft, thickness ≥14mm, flat and environment protection, elastic, non deformation, whole without joint, Methanol release mg/l≦1.5.

3. Reverse side: whole anti-rust galvanized plate, thickness≥0.20mm; special two-component AB adhesives, high-pressure formation in full automatic production, strong adhesive, corrosion resistance, stroke resistance, waterproof, durable, flat, never apart, all indexes conform the international environmental protection requirement.

4. Outer frame: High precision sanded silvery white aluminum alloy profile, streamlined design, no obvious string light. Individual chalk holder, novel and nice shape.

5. Sliding system:

1) Pulley: main pulley block with super quality bearing steel PU soft plastic pulley, runs without noise, the main pulley block with automatic cleaning function, clean the dust while running, make sure smooth run.

6. Installation requirement: stealth mounted, safe and reliable. 125*52mm, wall thickness 3mm.

Side frame: high precision sanded silver white aluminum alloy, outer diameter 122*35mm, wall thickness 1.3mm

Blackboard frame: high precision sanded silver white + invisible dark green aluminum allay, outer diameter 35*21mm, wall thickness 1.0mm;

Blackboard connection: high precision sanded silver white aluminum alloy, outer diameter 97*70, wall thickness 4mm.

1.2 Fixed blackboard at the back of classroom 

★The frame uses 1.0mm thickness of luxury electrophoresis aluminum, Green board is dark green metal lacquered writing board, board thickness 0.27mm, hardness 8H, easy wiping, good magnetic absorption, opaque, protect students eyes. The middle layer with multilayer corrugated paper, good elasticity, comfortable writing; the back board with 0.21mm thick high quality galvanized plate to prevent the black board from out of shape; Strong adhesive, the plate will not come unglued, no bubbles.

★The size of side frame: 30×18 (face size), electrophoresis aluminum, beautiful looking, the hardness of aluminum 14HRC.

★Overall size 1200 height x 4000 length (the size can be custom-made as per the classroom size). The total design is reasonable, durable, elastic, and comfortable in writing.