Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke175 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB
The AirTAC ACQJ40X175-100SB is a double-acting JIS compact cylinder with an external extend stop. A threaded rod and lock nut limit the outward stroke, giving a usable extend range of 75-175mm from the 175mm full stroke. Retract travel remains fixed. Because the piston area is unchanged, force output matches a standard ACQ exactly.
This long-stroke made-to-order variant exceeds the 100mm standard maximum for bore 40. It includes a male M14x1.5 rod end (-B) for direct load coupling and a piston magnet (-S) for position sensing. The body uses fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 175 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB Is Used
Machining Fixture Clamping
Dial in the exact clamping extension on a CNC milling fixture during setup. The external stop lets operators shift the end position for different raw material thicknesses without machining new spacers.
Assembly Line Changeover
Adjust the press depth when switching between product variants on an automated assembly line. The 75-175mm range provides flexibility for varying component heights during production runs.
Carton Sealing Stops
Modify the flap folding position on a packaging machine. The lock nut secures the adjusted extend position against vibration, ensuring consistent carton alignment during format size changes.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB the Right Cylinder?
Selecting this 40mm bore yields a push force of 628.3N and a pull force of 527.8N at 0.5MPa. If your application needs less force, a 32mm bore provides 402.1N push; if you need more, a 50mm bore offers 981.8N. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 175mm full stroke, 100mm window, PT1/8 port, M14x1.5 male rod thread, and the -S magnet requirement.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100SB FAQ
The usable extend range is 75-175mm (175mm full stroke minus the 100mm window). The retract stroke is unaffected. Force output equals a standard ACQ: push is 628.3N and pull is 527.8N at 0.5MPa, push is 879.6N at 0.7MPa, and maximum push is 128kgf at 1.0MPa. The adjuster thread is M12x1.25.
No, the external stop alters stroke length only, leaving piston area and force identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions. For high kinetic energy loads, add an external shock absorber. The -S magnet works with reed or electronic solid-state switches.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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