Egis Enterprises · Technical Datasheet
Egis HatchServe H40
Cold-Chain Doors
Insulated service hatch — pass goods through the wall without opening the personnel door.
Insulated service hatch for passing goods through cold-store and clean walls without opening a personnel door.
Specifications
| Door Type | Insulated service / pass hatch |
|---|---|
| Operation | Manual counterbalanced, self-closing |
| Insulation | 40 mm insulated leaf |
| Gaskets | Perimeter magnetic gasket |
| Sizes | 400x400 mm to 1200x900 mm |
| Mounting | Sized to wall panel thickness, flush with insulation line |
| Finish | Food-safe GRP or stainless steel |
| Certifications | CE marked, food-contact materials compliant |
Overview
Every time a full-size cold-room door opens for a single tray, the cold chain pays for it: cold air spills out at the bottom, warm air pours in at the top, and the refrigeration plant works to recover. The HatchServe H40 is an insulated service hatch — a compact, counterbalanced passing window set into the cold-store or clean-room wall — so goods move through and the big door stays shut.
The hatch leaf carries 40 mm insulation with a perimeter magnetic gasket, counterbalanced for one-hand operation and self-closing, so it is never left open by accident. In cold-store walls it is specified to the wall panel thickness so the hatch sits flush with the insulation line — no thermal bridge, no condensation ring around the frame. In clean applications the face is flush stainless for wipedown.
Egis sizes the H40 from 400 mm square up to 1200 mm wide for tray and crate transfer. It is the cheapest cold-chain upgrade a facility can make: the energy and temperature saving from keeping the personnel door closed pays for the hatch many times over.
How a small hatch saves the cold chain
Cold air is heavy. Open a full-size cold-room door and the cold pours out at the bottom while warm, humid air enters at the top — a complete air exchange in seconds, carrying moisture that becomes frost on the coil. A 600 mm hatch exchanges a fraction of that volume, and because the hatch is counterbalanced and self-closing, the opening time is seconds, not the minutes a propped personnel door stays open. The energy maths is simple: the hatch pays for itself in recovered refrigeration load.
The magnetic perimeter gasket is the sealing detail that makes the hatch work at small scale. It pulls the leaf into full contact on closing with no latch to forget, and the counterbalance is tuned so the leaf closes firmly but cannot slam fingers. Sized to the wall panel thickness, the hatch frame sits flush with the insulation line, so the opening does not become the cold bridge that defeats the wall around it.
- Pass goods without opening the personnel door
- 40 mm insulated leaf with perimeter magnetic gasket
- Counterbalanced one-hand operation, self-closing
- Sized to wall thickness — flush with the insulation line
- Stainless face option for clean and pharma applications
- Sizes from 400 mm square to 1200 mm wide
Typical applications
Cold-store goods transfer
Tray and crate transfer without the air exchange of a full door opening.
Commercial kitchens
Pass prepared food from kitchen to servery while the cold store stays closed.
Pharma pass-through
Material transfer between classified areas with a flush, wipeable face.
Clean-room material transfer
Stainless option keeps the hatch consistent with clean-room finishes.
FAQs
What sizes is the hatch available in?
From 400 by 400 mm up to 1200 mm wide, sized for tray and crate transfer. The frame is built to the wall panel thickness so it sits flush with the insulation line.
How is the hatch mounted in a panel wall?
The frame is specified to the exact wall panel thickness at order, so the hatch sits flush with the insulation line on both faces — no cold bridge, no condensation ring. Egis confirms the panel thickness from the cold-store drawings before placing the order.
Is the hatch self-closing?
Yes. The counterbalanced leaf closes by itself after every use, and the magnetic gasket pulls it into full seal contact. It cannot be left open by accident — which is the point.
Can the hatch be locked?
Yes, a lock option is available for hatches between areas with different access levels — for example between a public servery and a secure cold store.
Is it suitable for cleanrooms and pharma?
Yes, with the flush stainless face option. The magnetic gasket gives a clean, crevice-free seal line, and the stainless face wipes down to clean-room protocols.
What is the return on investment?
The hatch costs a fraction of a door and eliminates the air exchange of full-door openings for small transfers. In a busy cold store, the recovered refrigeration energy and reduced frost load typically pay for the hatch many times over within its service life.