Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40 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 ACQJ32X300-40
The ACQJ32X300-40 is a double-acting JIS compact cylinder built for applications requiring precise extend positioning. It features an external M12x1.25 threaded stop with a lock nut, allowing you to fine-tune the extend stroke on the machine without swapping parts. The usable extend range spans 260 to 300 mm, while the retract stroke remains completely unaffected. This unit is a long-stroke, made-to-order variant exceeding the standard 100 mm maximum for this bore.
Because the adjuster only limits travel length and not piston area, output force stays identical to a standard ACQ of the same bore. At 0.5 MPa it delivers 402.1 N of push force and 301.6 N of pull force. The body incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes magnetic-switch grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40 |
|---|---|
| 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 ACQJ32X300-40
| 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 ACQJ32X300-40 Is Used
Variable Length Stops
Adjusting the extend endpoint on a packaging machine to accommodate different carton depths without changing out hard stops.
Product Changeover
Rapidly reconfiguring the pusher distance on a material handling line during format changes for new product sizes.
Prototype Positioning
Dialing in the exact extension point during assembly machine trials to find the optimal operating window.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40 the Right Cylinder?
When sizing this unit, consider the neighbouring bores: a 25 mm bore provides 245.4 N push at 0.5 MPa, whereas a 40 mm bore yields 628.3 N. The 32 mm bore here offers 402.1 N, peaking at 82 kgf under 1.0 MPa. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is simpler and sufficient. If you need position feedback, select the -S magnet option for use with reed or solid-state switches. Confirm your ordering essentials: 32 mm bore, 300 mm full stroke, 40 mm window, 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 ACQJ32X300-40 FAQ
It has a 32 mm bore, a 300 mm full stroke, and a 40 mm adjustment window, giving a usable extend range of 260 to 300 mm. The force is identical to a standard ACQ: 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa.
The external M12x1.25 threaded stop and lock nut physically limit how far the rod extends, shortening the stroke by up to 40 mm without altering piston area, so force remains unchanged. The cylinder uses fixed elastomer bumpers for deceleration, not a brake; it will not hold a load on air loss, so an external rod lock is needed 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 ACQJ32X300-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.