custom 5 function manual hospital beds with mattress and wheels factory - Bulk Supply and Specification Guide

What This Product Is and Where It Fits

Consistency is set at the forming stage when the cold-rolled steel profile is cut, bent, and welded into a frame that must hold 250 kg static load without permanent deflection.

A 5-function manual bed delivers backrest, knee-break, height, Trendelenburg, and reverse Trendelenburg adjustment through a single crank shaft and gearbox assembly. The mattress ships as a matched component: high-density polyurethane foam core (35-40 kg/m³) wrapped in a welded-seam PVC cover that passes ISO 10993-5 cytotoxicity and resists sodium hypochlorite wiping. Wheels are 125 mm twin casters with central-locking via a foot pedal; two are directional, two are braked. Buyers in public procurement, private clinic chains, and export distributors specify this configuration when they need a bed that can be serviced by in-house biomedical engineers without proprietary tools.

The Problem Buyers Keep Paying For

Process choice shows up later as cracked welds at the head-end cross member after 18 months of daily height cycling, or as powder-coat delamination where alkaline cleaners pool under the mattress deck.

The most common complaint pattern: crank handles develop play because the gearbox housing is stamped from 1.2 mm sheet instead of die-cast zinc, allowing the shaft to walk under load. Wheel locks fail when the pedal pivot uses a plain bushing rather than a sealed ball bearing; corrosion locks the mechanism in the "free" position within six months in humid wards. Mattress covers split at the high-frequency weld seams because the PVC plasticizer migrates out under constant heat from patient-warming blankets. Each failure mode adds a service call that costs more than the unit price difference between a spec-compliant build and a corner-cut one.

Construction Method and Its Effect on Consistency

The build method decides whether the bed stays in tolerance after 10,000 crank cycles. Our line uses robotic MIG welding on a fixtured jig that holds the frame within ±0.5 mm diagonal squareness; post-weld stress relief is a 200 °C oven pass, not a manual grind. Gearbox housings are die-cast Zamak 5, CNC-machined for shaft bore concentricity, then assembled with a pre-loaded thrust washer that eliminates end-play. Powder coating is a two-coat system: epoxy primer (60 µm) plus polyester topcoat (80 µm) cured at 190 °C, tested to 500 h neutral salt spray per ASTM B117 before shipment.

Segment-Specific Requirements

Public procurement tenders often mandate a minimum 3-year warranty on the frame and 1-year on the mattress cover, with spare-part availability guaranteed for 7 years. Private clinic chains prioritize bed-end aesthetics — coloured ABS panels, integrated nurse-call buttons, and a mattress cover that matches their brand palette. Export distributors need knock-down packaging that fits 40 beds per 40-ft HC container without exceeding 2,800 kg payload. Each segment forces a different combination of frame reinforcement, cover material, and crate design.

Ordering, Tooling and Lead-Time Questions

• What is the minimum order quantity for a custom mattress cover colour? 50 units per colour; the PVC calendering run requires a 500 m minimum roll.
• Do you hold tooling for the 300 kg reinforced frame? Yes, the fixture is maintained in-house; no tooling charge for repeat orders above 100 units/year.
• Can the crank handle be changed to a fold-away design after first article approval? Only if the gearbox output shaft diameter matches; otherwise a new die-cast housing is needed (6-week lead, $3,200 tooling).
• What is the standard lead time from PO to first container? 45 calendar days for standard spec; 60 days if stainless frame or custom mattress foam density is specified.
• How are warranty claims handled for beds shipped outside the factory region? We ship a spare-part kit (gearbox, caster set, cover patches) with each container; claims are settled via photo evidence and serial traceability within 14 business days.