Cleanroom Doors, Windows and Interlock Systems

Cleanroom Floor-Spring Door

A hygienic swing door controlled by a concealed floor spring for smooth closing and a clean upper-frame appearance.

Architectural Cleanroom Entrance
40-60 mm Door Leaf
Single or Double Action
Stainless Floor Cover Option

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Product Introduction

The Cleanroom Floor-Spring Door locates its hydraulic closer below floor level, leaving the head frame free from a surface-mounted arm. The flush hygienic leaf pivots on a floor-supported spindle and a compact top pivot, providing controlled closing, adjustable latching action and backcheck. This arrangement suits architectural cleanroom entrances where unobstructed glazing, double action or a minimal upper frame is preferred.

Key Features

Floor-concealed closer removes the projecting arm and body from the door head.

Hydraulic speed control produces smooth closing through the main swing range.

Adjustable latching action helps compress perimeter seals without slamming.

Backcheck moderates rapid opening near the end of travel.

Top pivot and floor spindle support single-action or selected double-action layouts.

Customer Product Concerns

An overhead closer arm interrupts glazing and collects dust above the leaf.The complete hydraulic closer body is concealed inside a sealed floor box.

A heavy door slams when its gasket reaches the frame.Independent closing and latching controls decelerate the leaf before final compression.

Frequent wide opening damages nearby walls and hardware.Adjustable backcheck absorbs excessive opening speed near the end of travel.

Conventional side hinges do not suit a centered glass or double-action leaf.Floor spindle and top pivot support the required pivot axis with minimal visible hardware.

Typical Applications

Glazed cleanroom entrancesPharmaceutical office-to-clean transitionsLaboratory reception areasDouble-action material routesArchitectural controlled corridors

Technical Parameters

Core Material	Aluminum honeycomb or rigid polyurethane foam within a sealed hygienic leaf
Panel Thickness	40–50 mm
Effective Width	800–1200 mm clear opening per leaf
Maximum Length	Up to 2600 mm leaf height
Steel Facing Thickness	0.8–1.2 mm coated or stainless-steel facing
Core Density	40–60 kg/m³ for rigid polyurethane foam or structure-dependent honeycomb grade
Thermal Conductivity	0.024–0.040 W/(m·K), depending on the leaf core
Surface Finish	Powder-coated steel, brushed stainless steel or hygienic HPL
Joint Type	Pivoted swing leaf with concealed hydraulic floor spring, top pivot and gasketed frame
Customization	Available based on the intended application and operating environment.

Available Options

Single-action or double-action pivotHold-open or non-hold-open floor springFlush vision panel or full-glass leafStainless floor cover plate

Planning a Cleanroom Floor-Spring Door specification?

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