Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-30SB 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 ACQJ40X175-30SB
The ACQJ40X175-30SB is a double-acting JIS compact cylinder with an external extend stop. A threaded rod-end screw and lock nut let you fine-tune the forward stroke from 145 mm up to the full 175 mm without swapping parts. The return stroke remains fixed at its original length. Because the piston area stays constant, output force matches a standard ACQ exactly.
This long-stroke made-to-order variant exceeds the 100 mm standard maximum for this bore. It features a 16 mm piston rod, PT1/8 ports, and a fixed NBR elastomer bumper at each end. The -S magnet enables position sensing with reed or solid-state switches, while the -B male M14x1.5 rod thread couples directly to your load.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-30SB |
|---|---|
| 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 ACQJ40X175-30SB
| 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 ACQJ40X175-30SB Is Used
CNC Machining Clamps
Dial in exact clamping reach on CNC mills during prototype runs or material changes without machining new stop blocks.
Packaging Diverter Gates
Alter the push distance of sorting gates on packaging lines to handle varying carton widths on the fly.
Assembly Press Stops
Set precise lower end positions for light-duty assembly presses to accommodate different product stack heights.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-30SB the Right Cylinder?
If 879.6 N of push at 0.7 MPa is excessive, step down to a 32 mm bore offering 562.9 N; if more power is required, a 50 mm bore provides 1374.4 N. For fixed end positions, a standard ACQ cylinder is simpler, but this unit suits setups needing frequent stop adjustments. Order essentials: 40 mm bore, 175 mm full stroke, 30 mm adjust window, S magnet, B male rod 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 ACQJ40X175-30SB FAQ
The usable extend range is 145-175 mm. Force is identical to a standard ACQ: push is 628.3 N and pull is 527.8 N at 0.5 MPa, push is 879.6 N at 0.7 MPa, and maximum push is 128 kgf at 1.0 MPa. The 30 mm adjuster window only limits forward travel.
An external M12x1.25 threaded screw with a lock nut limits the extend stroke; force is unchanged because the piston area is the same. The cylinder uses a fixed elastomer bumper, not an adjustable air cushion. It will not hold a load if air pressure drops; use an external rod lock or pilot-operated check valve for fail-safe holding.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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