Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S 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 ACQJ40X175-50S
The ACQJ40X175-50S is a double-acting JIS compact cylinder with a 175mm stroke and an integrated piston magnet. An external M12x1.25 threaded stop and lock nut lets you fine-tune the extend end position on the machine, providing a usable extend range of 125-175mm. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore. This long-stroke made-to-order variant features a 16mm rod, PT1/8 porting, and fixed NBR elastomer bumpers at both ends. The built-in magnet supports both reed and solid-state electronic switches for position sensing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S |
|---|---|
| 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 ACQJ40X175-50S
| 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 ACQJ40X175-50S Is Used
Multi-Format Tooling
Dial in exact extend stops for varying part lengths on a CNC machining line without swapping out entire actuators or fixtures.
Carton Changeover
Adjust the pusher end position rapidly during packaging product changeovers to accommodate different box dimensions on the fly.
Assembly Trial Stops
Set trial end positions during automated assembly machine setup, allowing operators to tweak the 125-175mm range for optimal component placement.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S the Right Cylinder?
If 628.3N push at 0.5MPa is excessive, step down to a 32mm bore (402.1N push); if more power is required, step up to a 50mm bore (981.8N push). For applications that never require end-position changes, a fixed-stroke ACQ cylinder is simpler and sufficient. When ordering this unit, verify the 40mm bore, 175mm full stroke, 50mm adjuster 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 ACQJ40X175-50S FAQ
This cylinder delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The usable extend range is 125-175mm, created by a 50mm adjustment window on the 175mm full stroke.
The external M12x1.25 threaded stop with lock nut physically limits rod extension, changing only the stroke length while keeping force identical to a standard ACQ. It relies on fixed elastomer bumpers for end-of-stroke deceleration, not a lock; for fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required.
Authorized Export Seller
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
Request a Quote for Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.