Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke70 mm
- Port sizeM5×0.8
- Adjuster threadM8×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB
The AirTAC ACQJ20X70-10SB is a double-acting JIS compact cylinder featuring a 20mm bore and 70mm full stroke. An external M8x1.25 threaded stop with a lock nut lets you fine-tune the extend end position on the machine, providing a usable extension range of 60-70mm. 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 size, yielding 157.1N push and 117.8N pull at 0.5MPa. The unit includes a male M8x1.25 rod-end thread (-B) for direct load coupling and a built-in piston magnet (-S) for position sensing. Fixed elastomer bumpers handle end-of-stroke deceleration.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 70 mm |
| Adjuster thread | M8×1.25 |
| Port size | M5×0.8 |
| 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 | M5×0.8 (F) / M8×1.25 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB Is Used
Machining Fixture Clamps
Dial in the exact clamping extension on a CNC fixture for parts of varying thicknesses without manufacturing custom spacers.
Product Changeover Stops
Adjust the extend position of a pneumatic stopper gate on a packaging line to handle different carton lengths rapidly.
Prototype Positioning
Test multiple end positions on an experimental assembly rig to find the optimal travel before finalizing the design.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB the Right Cylinder?
At 0.5MPa, this 20mm bore generates 157.1N push force. If your application requires less force, the 16mm bore provides 100.5N push, while stepping up to the 25mm bore yields 245.4N push. Choose this adjustable version when setup requires varying the extend endpoint without swapping components; otherwise, a fixed-stroke ACQ cylinder is sufficient. Confirm ordering details: 20mm bore, 70mm full stroke, 10mm window, -S magnet, and -B male 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10SB FAQ
This 20mm bore cylinder has a 70mm full stroke with a 10mm adjustable window, giving a usable extend range of 60-70mm. Force is identical to a standard ACQ: 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa.
An external M8x1.25 threaded stop with a lock nut limits the extend stroke without changing the piston area, so force remains unchanged. The retract stroke is unaffected. Deceleration is handled by fixed elastomer bumpers at both ends, not an adjustable air cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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