Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100S 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 ACQJ40X175-100S
This double-acting single-rod JIS compact cylinder features an external threaded stop with a lock nut that restricts the EXTEND end position. You can fine-tune the usable extend stroke anywhere between 75 and 175 mm directly on your machinery. The RETRACT movement remains completely unaffected by this adjustment. Because the piston area stays constant, the output force matches a standard ACQ equivalent exactly.
As a long-stroke made-to-order variant, this 175 mm unit exceeds the 100 mm standard maximum for a 40 mm bore. It incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The integrated -S piston magnet supports both reed and solid-state electronic sensing switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100S |
|---|---|
| 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 ACQJ40X175-100S
| 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 ACQJ40X175-100S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on multi-part machining fixtures without machining new spacer plates.
Assembly Line Changeover
Rapidly reposition the extend end stop for new product dimensions during automated assembly line changeovers.
Press Fit Positioning
Test and set precise pressing depths for bearing insertion operations before finalizing the mechanical setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100S the Right Cylinder?
If your application only requires a fixed reach, a standard ACQ40X175 cylinder is sufficient and more economical. When sizing for thrust, stepping down to a 32 mm bore yields 402.1 N push at 0.5 MPa, whereas stepping up to a 50 mm bore provides 981.8 N push at 0.5 MPa. To order this adjustable model correctly, specify the 40 mm bore, 175 mm full stroke, -100 mm window, the -S magnet option, and the default female M8x1.25 rod-end thread.
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 ACQJ40X175-100S FAQ
The push force is 628.3 N and pull is 527.8 N at 0.5 MPa, with a push of 879.6 N at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 175 mm with a -100 mm window, giving a usable extend range of 75-175 mm.
The M12x1.25 external stop adjusts the extend length only; it does not alter the piston area, so force remains identical to a standard ACQ. The cylinder does not hold its load on air loss, and the fixed elastomer bumper only decelerates near the stroke end, so an external rod lock is needed for fail-safe holding.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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