Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB
The ACQJ32X300-40SB is a double-acting, single-rod JIS compact cylinder built for applications requiring variable extend positioning. It features a 32mm bore and a 300mm full stroke, classifying it as a long-stroke, made-to-order variant since it exceeds the 100mm standard maximum for this bore size. An external M12x1.25 threaded stop with a lock nut restricts the outward travel, providing a usable extend range of 260-300mm. The inward stroke remains completely unaffected.
Because the internal piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 402.1N push at 0.5MPa. This unit includes a male M14x1.5 piston rod end for direct load coupling and a built-in magnet (-S) for position sensing. Deceleration relies on fixed NBR elastomer bumpers at both ends rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 300 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 ACQJ32X300-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 ACQJ32X300-40SB Is Used
Machining Fixture Stops
Dial in the exact extend position of a 32mm bore clamping fixture on a CNC mill without machining new spacers.
Product Changeover Diverter
Shift a sorting gate stroke by up to 40mm on a packaging line to accommodate different carton lengths rapidly.
Prototype Press Positioning
Establish optimal end-of-stroke contact points on a test press by tuning the 260-300mm extend range on the fly.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40SB the Right Cylinder?
For lighter duties, the 25mm bore offers 245.4N push at 0.5MPa, whereas stepping up to the 40mm bore yields 628.3N. If your end-position never varies, a fixed-stroke ACQ cylinder suffices and avoids the external adjuster. When ordering this model, verify the 32mm bore, 300mm full stroke, 40mm adjuster window, the -S magnet for electronic or reed switches, and the -B male M14x1.5 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 ACQJ32X300-40SB FAQ
The usable extend range is 260-300mm (a 40mm window off the 300mm full stroke). Force matches a standard ACQ: 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
An external M12x1.25 threaded screw with a lock nut mechanically limits the extend distance without altering piston area or force. The cylinder uses fixed NBR elastomer bumpers, not adjustable air cushions. It will not hold a load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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 ACQJ32X300-40SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.