Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10
The AirTAC ACQJ40X70-10 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable extend range of 60-70 mm from the 70 mm full stroke, tunable directly on your machine. The retract stroke remains completely unaffected. An M12x1.25 adjuster thread handles the stroke shortening.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore. You still get the fixed elastomer bumper at each end for end-of-stroke deceleration. This 40 mm bore version uses a PT1/8 port and a Ø16 mm rod. Note this specific SKU ships without a magnet, though the body retains sensor grooves for adding switches if needed later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 70 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 ACQJ40X70-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 ACQJ40X70-10 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during part setups. The 10 mm window lets operators fine-tune the 60-70 mm extension without swapping cylinders.
Assembly Line Changeover
Adjust end positions rapidly when switching between product variants on an automated assembly line. The external stop allows quick mechanical tweaks for different component heights.
Carton Forming Tensioning
Set precise push distances for packaging equipment folding various carton sizes. The fixed elastomer bumper absorbs the impact while the stop screw sets the final fold depth.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10 the Right Cylinder?
Choose this 40 mm bore when you need 628.3 N push or 527.8 N pull at 0.5 MPa. If your application requires less force, stepping down to a 32 mm bore yields 402.1 N push. If you need more power, sizing up to a 50 mm bore provides 981.8 N push. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 70 mm full stroke, the 10 mm adjuster window, the female M8x1.25 rod thread, and the absence of the S magnet option.
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 ACQJ40X70-10 FAQ
This cylinder delivers 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The usable extend range is 60-70 mm, achieved by shortening the 70 mm full stroke by up to 10 mm via the external stop.
The external M12x1.25 threaded stop with lock nut mechanically limits how far the rod extends, changing only the stroke length and not the piston area. Force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration rather than adjustable air cushions, and this specific model ships without a sensor magnet.
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 ACQJ40X70-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.