120kg Adjustable Concealed Door Hinge EN1935 for Fire Rated Metal Door-DDCH008-G120

If your specification calls for a Concealed Door Hinge for Metal Door that is fire-rated 132 minutes, cycle-proven 200 000 times and corrosion-tested 48 hours, the 120 kg adjustable DDCH008-G120 silver hinge delivers hidden strength for steel and aluminium doors without compromising modern aesthetics.

Model:
DDCH008
Brand:
D&D Hardware
Certification:
BS EN1935 200,000 cycles test, EN1634 fire rated 132mins, EN1670 corrosion resistance 48 hours
Material:
Zinc Alloy Body, Aluminium Connecting Strip
Color:
silver
Application:
Wooden Door, Metal Door

Availability:

Quantity:



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G120-5

When you need a Concealed Door Hinge for Metal Door assemblies that must disappear into slim steel frames yet carry 120 kg without sag, the DDCH008-G120 silver-finish hinge is the specifier’s secret weapon. Built from high-strength Zinc Alloy with a lightweight Aluminium Connecting Strip, this 34 × 246 mm pocket hinge passes BS EN1935 200 000-cycle fatigue test, achieves EN1634 132-minute fire rating and survives EN1670 48-hour salt-spray—perfect for architectural steel doors in hotels, hospitals, data centres and high-end apartments.

Why metal-door experts choose our Concealed Door Hinge for Metal Door

120 kg per-leaf capacity – one pair safely supports 240 kg insulated steel doors, eliminating mid-span drop that cracks intumescent seals.
200 000-cycle BS EN1935 certification – class 14 endurance keeps entrance traffic flowing for decades, cutting replacement costs in busy commercial buildings.
132-minute EN1634 fire rating – hinge maintains door alignment during furnace exposure, helping the complete doorset hit EI2 classification for UK/EU Approved Document B compliance.
Grade 4 EN1670 corrosion resistance – 48-hour neutral salt-spray means no white rust on coastal high-rises or humid indoor pools.
Tool-free 3D micro-adjustment – ±3 mm side, ±2 mm height, ±1 mm compression after installation; fine-tune reveal gaps without removing the door or damaging powder-coated frames.
Ultra-slim 34 mm width – slots into standard 40 mm metal door lips and 50 mm steel frames, giving fabricators a concealed solution without widening stiles.
Silver satin anodised surface – matches brushed stainless pulls and aluminium glazing, creating a seamless visual flow across mixed-material façades.

Concealed Door Hinge for Metal Door application hotspots

Fire-rated steel apartment entrance doors 60–120 kg
Hospital X-ray rooms with lead-lined 100 kg door leaves
Hotel guest-room sound-insulated metal doors
Server-farm data-centre security doors requiring hidden tamper-proof hinges
Coastal office towers with powder-coated aluminium door systems
Hidden bookcase or wall-panel doors fabricated from hollow metal sections
Luxury retail back-of-house service corridors where aesthetics matter

Technical data – DDCH008-G120

Body: High-pressure cast Zinc Alloy ZA-12 for superior thread strength
Connecting strip: 6063-T5 extruded aluminium, silver anodised 25 μm
Overall size: 34 mm (W) × 246 mm (L) × 26 mm (D) pocket profile
Screw centres: 210 mm / 18 mm, M5 threaded inserts
Adjustment range: Side ±3 mm, Height ±2 mm, Compression ±1 mm via hex key
Max door weight: 120 kg per hinge (2 hinges = 240 kg, 3 hinges = 360 kg)
Max door width: 1100 mm
Recommended door thickness: 40–60 mm metal, 44–80 mm timber-composite
Fire performance: 132 min integrity & insulation on 64 mm fire-rated metal door
Cycle test: BS EN1935 class 14, 200 000 cycles, zero wear > 1 mm
Corrosion test: EN1670 grade 4, 48 h salt-spray, no red rust < 5 % surface
Standards: CE & UKCA marked, Declaration of Performance (DoP) downloadable
Fixings: Supplied with A2 stainless-steel pan-head screws, T25 Torx drive, 50 mm length for metal frame anchorage.

Installation edge for fabricators

The DDCH008-G120 Concealed Door Hinge for Metal Door uses a single 246 mm × 16 mm mortise on both door and frame—no secondary reinforcement plates needed in 1.5 mm steel profiles. Pre-located M5 threads accept standard euro screws, letting CNC punching centres prep both components in one pass. Because adjustment screws face the room side, site teams can correct settlement drift after architraves are fitted, saving costly call-backs.