Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke250 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B
The ACQJ32X250-30B is a double-acting, JIS compact cylinder with an external stroke adjuster. A threaded stop and lock nut on the rod-end side restricts how far the piston extends. You can fine-tune the extend end position on the machine without swapping parts. The usable extend range is 220-250 mm (full 250 mm stroke minus up to a 30 mm window). The retract stroke remains unaffected.
Because the adjuster only limits travel and does not alter piston area, force is identical to a standard ACQ of this bore. The push force is 402.1 N at 0.5 MPa and 562.9 N at 0.7 MPa. This long-stroke variant exceeds the 100 mm standard maximum for a Ø32 bore and is manufactured as a made-to-order unit. It includes a male M14x1.5 rod-end thread, a PT1/8 port, and fixed NBR elastomer bumpers at both ends.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 250 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 ACQJ32X250-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 ACQJ32X250-30B Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC machining fixture to accommodate varying part heights without manufacturing new stop collars.
Product Changeover Guides
Rapidly reposition the extend end stop on a packaging line during a product size changeover, saving setup time between different carton formats.
Prototype Positioning
Test and establish trial end positions on new laboratory automation equipment by adjusting the external stop nut until the kinematics are perfect.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30B the Right Cylinder?
For sizing context: the neighbouring bore down is Ø25 (push 245.4 N at 0.5 MPa) and the neighbouring bore up is Ø40 (push 628.3 N at 0.5 MPa). If your extend position never changes, a fixed-stroke ACQ cylinder suffices. When ordering this adjustable model, confirm the 32 mm bore, 250 mm full stroke, 30 mm adjuster window, the male rod thread (-B), and that no magnet (-S) is required.
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 ACQJ32X250-30B FAQ
The push force is 402.1 N at 0.5 MPa and 562.9 N at 0.7 MPa; the pull force is 301.6 N at 0.5 MPa. The maximum push force is 82 kgf at 1.0 MPa. The full stroke is 250 mm, and the adjustable extend window is 30 mm, yielding a usable extend range of 220-250 mm.
The adjuster is an external M12x1.25 threaded stop with a lock nut that limits only the extend stroke; the force is identical to a standard ACQ because the piston area is unchanged. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not an adjustable air cushion. For high-speed loads, an external shock absorber is recommended.
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1-Year Warranty
Covers non-human-caused product damage.
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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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