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BP-007 · Door closer
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1
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A
A
B
B
C
C
D
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E
E
F
F
255
64
x=0.0
14
2
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7
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8
12
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13
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15
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C
B
B
SECTION A-A
PLAN SECTION THROUGH THE CYLINDER AXIS · SCALE 1:1
DETAIL C
SWEEP NEEDLE AND PORT · SCALE 10:1
9
10
DETAIL F
CHECK VALVE IN PISTON 5, RIDING WITH IT · 5:1
A
A
23
22
SECTION B-B
ACROSS THE SPINDLE · 1:1
θ=0°
21
16
17
20
19
18
PLAN E
DOOR AND ARM FROM ABOVE · HEAD REMOVED · 1:10
0
20
40
60
80
100
0
3
6
9
12
15
TIME t, s
DOOR θ, °
DIAGRAM 1
▼ PUSH · THICK: HELD · ACCENT: OIL CLOSING · DASHED: LATCH DUE
0
1
2
3
4
5
6
7
0
50
100
LEFT AT θ, °
QUIET NEEDED, s
DIAGRAM 2
TIME TO LATCH FROM θ
NOTES
1. SPRING 7 DRIVES PISTON 5; OIL EXITS ONLY VIA NEEDLES 11, 12.
2. NEEDLE = ORIFICE: Q = Cd·A·√(2p/ρ), Cd 0.62, ρ 870 kg/m³.
3. p = F/A = 8.6–14.7 bar. BELOW 13° THE PISTON SHUTS THE SWEEP
4. PORT AND ONLY NEEDLE 12 (LATCH) PASSES OIL.
5. OPENING, BALL 9 LIFTS AND THE OIL RETURNS FREE.
6. EVERY PUSH RESTARTS THE CLOSING: FROM 90° IT LATCHES 5.3 s AFTER
7. THE LAST PUSH, NOT BEFORE.
8. CLOSING MOMENT 24 N·m AT 0° (EN 1154 SIZE 3: ≥ 18 N·m).
9. SCREWS, BALLS, ROLLERS AND SPINDLE NOT CUT LENGTHWISE.
ITEM
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DESCRIPTION
BODY, BORE Ø40
END PLUG M42×1.5, SPRING SIDE
END PLUG M42×1.5, VALVE SIDE
O-RING 37×2
PISTON WITH RACK m2.5
PISTON RING Ø40×1.5
CLOSING SPRING Ø6×Ø37, 14 COILS
PINION SPINDLE z10 m2.5
CHECK BALL Ø4 G10
PIN Ø1.5×10 ISO 8734
REGULATING SCREW 1, SWEEP M5×0.5
REGULATING SCREW 2, LATCH M5×0.5
O-RING 2.4×0.6
SEALING BALL Ø2.5, PRESSED
HYDRAULIC OIL ISO VG 15
MAIN ARM 250
FOREARM 220
ARM SHOE
ARM SCREW M6×16 ISO 4762
ELBOW RIVET Ø8
DOOR LEAF 950×44 (REF.)
NEEDLE BEARING HK 1610
SHAFT SEAL 16×22×3
MATERIAL
EN AC-46000 (AlSi9Cu3)
11SMnPb30
11SMnPb30
NBR 70
42CrMo4, RACK HARDENED
PTFE + 25% BRONZE
EN 10270-1 SH
42CrMo4
100Cr6
STEEL, HARDENED
CuZn39Pb3
CuZn39Pb3
FKM 75
100Cr6
HV 15
DC01 PRESSED
DC01 PRESSED
ZP5 (EN 12844)
STEEL 8.8
C15
BY OTHERS
BOUGHT OUT
NBR 70
QTY
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1
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1
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1
1
1
1
1
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2
1
1
1
1
1
1
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TITLE
DOOR CLOSER · SECTION A-A
DWG NO
BP-007
SCALE
1:1
SIZE
A2
SHEET
1 / 1
DRAWN
CLAUDE
DATE
2026-10-15
MATERIAL
SEE PARTS LIST
GENERAL TOL.
ISO 2768-m
UNITS
mm · bar · s
LIVE · SPACE OR CLICK PUSHES THE DOOR · DRAG IT IN PLAN E · S SLOW
Space
or click the closer: push the door · drag the door in plan E ·
R
shut it ·
S
slow
blueprint
paper
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