Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-75SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-75SB 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 ACQJ40X175-75SB
The ACQJ40X175-75SB is a double-acting JIS compact cylinder featuring a 175 mm stroke and an external extend stop. An M12x1.25 threaded adjuster with a lock nut lets you fine-tune the extend end position on the machine itself, yielding a usable forward range of 100-175 mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force matches a standard ACQ exactly: 628.3 N push and 527.8 N pull at 0.5 MPa. This made-to-order variant uses the long-stroke range (up to 300 mm) to exceed the 100 mm standard maximum for this bore. It includes a male M14x1.5 rod end and a built-in piston magnet for position sensing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-75SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-75SB |
|---|---|
| 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 ACQJ40X175-75SB
| 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 ACQJ40X175-75SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on CNC fixtures without machining new spacer blocks, accommodating multiple part lengths on the same tombstone.
Packaging Changeover
Rapidly adjust the product pusher end-point during format size changes on a wrapping line, cutting setup time between different carton widths.
Press Trial Positions
Test varying engagement depths on light assembly presses, finding the optimal end position mechanically before committing to a fixed stroke.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-75SB the Right Cylinder?
Choosing this 40 mm bore provides 628.3 N push at 0.5 MPa. If your application requires less force, stepping down to a 32 mm bore yields 402.1 N, while moving up to a 50 mm bore offers 981.8 N. A fixed-stroke ACQ is sufficient if your extend position never requires adjustment. Confirm your ordering essentials: 40 mm bore, 175 mm full stroke, 75 mm window, plus the S magnet and B male rod thread. Note that a plain compact cylinder drifts on air loss; add an external rod lock for fail-safe holding.
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 ACQJ40X175-75SB FAQ
It has a 175 mm full stroke with a 75 mm adjustable window, giving a usable extend range of 100-175 mm. The force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the forward stroke; it changes stroke length only, not the force. The cylinder uses fixed NBR elastomer bumpers at both ends for deceleration rather than adjustable air cushions. The built-in S magnet works with both reed and electronic solid-state switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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