Egis Enterprises · Technical Datasheet
Egis RadGuard X3
Healthcare Doors
Lead-lined hermetic sliding door for X-ray, cath-lab and radiotherapy suites.
Lead-lined hermetic sliding door for X-ray rooms, cath labs and radiotherapy bunkers, with up to 3 mm lead equivalence and airtight sealing.
Specifications
| Door Type | Single-leaf lead-lined hermetic sliding door |
|---|---|
| Operation | Automatic heavy-duty drive |
| Leaf Thickness Mm | 90 mm |
| Clear Opening | 900-1800 mm W x 2100-2500 mm H |
| Finish | Powder-coated steel; stainless steel option |
| Airtightness | EN 12207 Class 4 |
| Radiation Protection | 1-3 mm Pb equivalence, overlapped frame shielding |
| Opening Speed M S | 0.3 - 0.6 |
| Automation | Heavy-duty microprocessor drive, touchless sensors |
| Safety | EN 16005 safety photocell, presence detection, battery backup |
| Certifications | CE marked; documentation for AERB compliance |
Overview
Radiation rooms need doors that do three things at once: block X-rays, seal air, and move a very heavy leaf reliably thousands of times a year. The RadGuard X3 is Egis' lead-lined hermetic sliding door, carrying up to 3 mm of lead equivalence in a 90 mm leaf, with the shielding overlapped at the frame so there is no radiation gap at the perimeter — the classic failure point of shielded doors. The leaf remains a true hermetic slider: down-and-in closing, full-perimeter gasket, EN 12207 Class 4 airtightness.
Weight is the engineering challenge. A lead-lined leaf is several times heavier than a standard hermetic leaf, so the X3 runs on a heavy-duty drive with an uprated carrier, reinforced track and soft start/stop control. Opening speed is tuned to 0.3–0.6 m/s: fast enough for clinical throughput, gentle enough that the seal seats without hammering the gasket or the shielding. Safety follows EN 16005 with radar, infrared presence detection and a soft bottom edge.
Egis sizes the lead equivalence to the room's shielding design — 1 to 3 mm Pb — and coordinates with the project's radiation safety officer and AERB-licensed physicist, because in India the shielding design of an X-ray or radiotherapy room follows AERB guidelines. Clear openings run 900 to 1800 mm wide and 2100 to 2500 mm high, covering diagnostic X-ray through interventional suites. The clinical face is powder-coated steel with a stainless option, flush and wipeable.
How radiation shielding survives a sliding door
Lead must be continuous. A sheet of lead in the leaf means nothing if the frame junction leaks scatter radiation, so the X3's shielding is designed as a system: the lead lining wraps the leaf, and the frame carries overlapped shielding so the leaf-to-frame junction maintains the rated equivalence in the closed position. The down-and-in closing action matters here too — it pulls the leaf tight to the frame, closing the junction the same way every cycle.
The drive engineering is about mass control. The heavy-duty microprocessor drive ramps torque on start and brakes regeneratively on approach, so the leaf's kinetic energy never exceeds what the end stops and seals can absorb. An interlock output ties into the room's X-ray warning system: the exposure circuit can be wired so the tube cannot energise unless the door proves closed — a standard requirement in radiation safety design.
- 1–3 mm lead equivalence, sized to the room's shielding design; overlapped frame shielding
- No radiation gap at the perimeter — shielding is continuous leaf-to-frame
- Heavy-duty drive and reinforced track for the lead-lined leaf mass
- HermaSeal-grade airtightness: EN 12207 Class 4 with down-and-in sealing
- X-ray warning interlock output — exposure inhibited unless door is closed
- Safety to EN 16005: radar, infrared presence detection, soft bottom edge
Typical applications
Diagnostic X-ray rooms
Shielded, airtight closure for general radiography suites.
Cath labs and interventional suites
Heavy-duty reliability for high-cycle interventional use with warning-light interlocking.
CT and radiotherapy bunkers
Higher lead equivalence configurations for high-energy rooms.
Mammography and DEXA rooms
Lower-equivalence setups where the hermetic seal also serves HVAC needs.
FAQs
How much lead does my room need?
Lead equivalence is determined by the room's shielding design, which accounts for the equipment's workload, energy, room layout and occupancy of adjacent areas. In India this design is prepared under AERB guidelines, typically by the equipment supplier's physicist or the project's radiation safety officer. The RadGuard X3 is available from 1 to 3 mm Pb equivalence to match that design — Egis builds the door to the specified value.
Does the door itself need AERB approval?
AERB regulates the X-ray installation as a whole, including room shielding. The door is part of the shielded envelope and its lead equivalence must match the approved shielding design. Egis provides the door's shielding specification and test documentation for inclusion in the facility's licensing submissions.
Will the heavy leaf damage the seal over time?
Not if the drive is engineered for the mass — which is the point of the X3's heavy-duty package. Soft start/stop ramping keeps closing energy constant and gentle, so the gasket sees the same seating force as a standard hermetic door. The carrier, track and rollers are all uprated, and the cycle-count-based maintenance schedule covers them.
Can the door interlock with the X-ray machine?
Yes. The controller provides a door-closed proving output that the room's warning and exposure circuits use to inhibit tube energisation while the door is open — standard practice in radiation suite design. Warning-light and signage outputs are also available.
Is the door still airtight with lead inside?
Yes. The sealing system is the HermaSeal down-and-in geometry with full-perimeter EPDM gasket and drop-down floor seal, tested to the same EN 1026 basis and EN 12207 Class 4 classification. The lead lining is encapsulated within the leaf and does not interfere with the seal.
What sizes are available?
Clear openings 900 to 1800 mm wide and 2100 to 2500 mm high with a 90 mm leaf. Wider equipment-transfer openings are engineered to order with appropriately uprated drives.