Hollow Blow-Molded Integrated Seat - Mobile Bleacher Series



Product Introduction:
Seat Model: Hollow Blow-Molded Integrated Seat (BMOPS)
Specifications: Seat depth 400/420mm, seat width 390/410mm, back height 160mm, seat height 430mm, center distance 390mm (or larger)
Design Load: In addition to supporting the weight of the seats themselves, retractable mobile bleachers must meet a vertical static load ≥350kg/m, left-right swing load ≥36kg·m. Guardrails must withstand horizontal forces, with a horizontal load capacity ≥65kg per meter and a vertical load capacity ≥100kg per meter.
Power System: The electric controller can use both handheld and wireless remote control systems. Specially designed drive system for mobile bleachers, with motor power 380V, 0.37KW (0.55KW), 50HZ, featuring low impact, smooth operation, and maintenance-free characteristics.
Seat Beam: Made of high-quality Q235 rectangular tube 60mm×40mm×3.75mm. The steel frame uses quick-assembly structural components, prohibiting on-site welding. All structural parts are processed from ≥2mm thick Q235 steel plates bent into universal profiles.
Hinge System: Fully enclosed, consisting of permanently lubricated link arms (bearings contain lubricant), two independent hinges, and two bidirectional functional spring lift systems. The hinge device can withstand 350,000 operations without lubrication fatigue or measurable bearing wear.
Castors: The castors at the bottom of the bleacher steel frame are made of polyurethane material with double bearings, load capacity ≥250Kg. They must not damage the floor or leave rolling marks when moving on the floor.
Floor: Made of 18mm high-quality environmentally friendly multi-layer solid wood board formed by high-temperature molding, surface covered with wear-resistant and anti-slip floor adhesive. The front edge of the bleacher uses aluminum alloy profile edge beams with luminous anti-slip strips.
Other Requirements: The railings on both sides of the seats are made of welded 40*40*2.0 steel tubes and ?10 standard round steel. The color can be customized to match the industrial self-leveling color of the competition venue.