Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S 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 ACQJ20X70-10S
The AirTAC ACQJ20X70-10S is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the forward stroke on the machine across a 60-70 mm usable range without swapping parts, while the retract stroke remains unaffected. The adjuster uses an M8x1.25 thread.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa. It includes a built-in magnet for electronic or reed switches, fixed elastomer bumpers at both ends, and an M5x0.8 port.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S |
|---|---|
| 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 ACQJ20X70-10S
| 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 ACQJ20X70-10S Is Used
Machine Tapping Depth Calibration
Dial in the exact 60-70 mm forward position on a tapping head to accommodate different thread depths without machining new stop collars.
Product Changeover Stops
Adjust the external rod-end stop on a packaging conveyor to shift pusher end positions rapidly when switching between varying carton widths.
Prototype End-Position Testing
Safely trial different extend endpoints on a laboratory test rig by turning the M8x1.25 adjuster screw to find the optimal transfer distance.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S the Right Cylinder?
If you need less thrust, the 16 mm bore version provides 100.5 N push at 0.5 MPa, whereas stepping up to the 25 mm bore yields 245.4 N. Choose this 20 mm option when your fixture requires precise 60-70 mm extend tuning. If a fixed 70 mm forward stroke is always sufficient, a standard ACQ series cylinder will suffice. When ordering, confirm the full stroke, the 10 mm window, the S magnet, and the default female M5x0.8 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X70-10S FAQ
This 20 mm bore cylinder operates at 0.15-1.0 MPa and delivers 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. The full stroke is 70 mm with a 10 mm adjustable window, giving a usable extend range of 60-70 mm.
No, the adjuster changes the extend stroke length only, so force remains identical to a standard ACQ. The retract stroke is unaffected. The rod end features fixed elastomer bumpers for deceleration, and the included S magnet works with both reed and solid-state switches.
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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