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  2. Systems and components for machine and plant construction
  3. 27000
  4. Concealed hinges
  5. Concealed hinges steel or stainless steel, folded edge up to 20 mm
  6. Concealed hinges steel or stainless steel, folded edge up to 20 mm, Form B
    7. 27878-1224
Designation
Hinge
Version 1
Internal
Form
B
Main material
stainless steel A2
Surface finish body
bright
B1
17,5
B2
4,6
B3
18
D
5
Frame part fastening
weldable
Frame part material
Stainless steel 1.4301
Frame part surface finish
bright
H1
78
H3
60
H4
36
L
14,6
L1
2,5
Pin material
Stainless steel 1.4301
S
2
Steel code
1.4301
UNSPSC Code
31161524
Version
with slot incl. O-ring
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CONFLICT MINERALS procurement
DRC conflict-free
~ CP65 substance 2 cancer
nickel (metallic)
~ PFAS free?
yes
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Description

Product description
Concealed hinges are usually employed for functional or visual reasons. The hinge is mounted on the inside edge of the door and frame and is only visible when the door is open.
Material

Door part, frame part and pin steel, stainless steel 1.4305, 1.4301 or 1.4401.
Locking sleeve PE-LD.
O-ring NBR.

Version
Door part, frame part and pin steel, untreated or galvanised.
Door part, frame part and pin bright stainless steel.
Locking sleeve black.
Note
For on-frame doors.
Hinges not visible.
Folded edge 16, 18 or 20 mm.
For right or left use.
Opening angle 115 or 120°.
Weld-on door part.

Form A: Hinge pin secured by sleeve.
Application
- Machine and plant construction
- Switchboxes and control housings
- Medical and laboratory technology
- Transport and conveyor systems
Drawing reference
1) Folded edge
2) Fastening type frame part: weld-on
3) Fastening type frame part: screw-on
4) Pin version: without slot
5) Pin version: with slot incl. DIN 6799 locking washer
6) Pin version: with slot incl. O-ring
7) Locking sleeve
8) Weld bead
9) Reinforced
10) Fastening with M5 countersunk screws
11) Notch in the door
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