Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X45-10SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X45-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke45 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 ACQJ20X45-10SB
The AirTAC ACQJ20X45-10SB is a double-acting JIS compact cylinder with a 45 mm full stroke and a 10 mm external adjustment window. By turning the M8x1.25 threaded stop and lock nut on the rod side, you can fine-tune the extend end position anywhere from 35 mm up to 45 mm without swapping parts. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force is identical to a standard ACQ bore 20. You get 157.1 N push and 117.8 N pull at 0.5 MPa, or 219.9 N push at 0.7 MPa. The unit includes a male M8x1.25 rod end for direct mounting, a built-in magnet for reed or solid-state sensors, and fixed elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X45-10SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X45-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 45 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 ACQJ20X45-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×45 | 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 ACQJ20X45-10SB Is Used
Product Changeover Stops
Dial in the extend position from 35 to 45 mm on packaging lines when switching between different carton sizes, eliminating the need to fabricate custom spacer rings.
Trial End Positions
Set precise clamping endpoints during prototype testing on machining fixtures, allowing operators to tweak the 10 mm window for optimal material compression.
Setup-Varying Diverters
Adjust the stroke of a conveyor sorting gate on the fly to accommodate varying product profiles without dismantling the air cylinder mounting hardware.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X45-10SB the Right Cylinder?
If you need slightly less push force, the adjacent bore 16 model delivers 100.5 N push at 0.5 MPa. If your application requires more thrust, stepping up to a bore 25 cylinder provides 245.4 N push at 0.5 MPa. Choose this specific 20 mm bore when your fixture requires exactly 157.1 N push and a 35-45 mm extend range. If your end position never varies, a fixed-stroke ACQ20X45 will suffice. To order, confirm the 20 mm bore, 45 mm full stroke, 10 mm window, the -S magnet, and the -B male M8x1.25 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 ACQJ20X45-10SB FAQ
It provides 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 45 mm with a 10 mm adjustment window, giving a usable extend range of 35-45 mm.
No, the adjuster only limits how far the rod extends by acting as an external mechanical stop; the piston area is unchanged, so force remains identical to a standard ACQ. The retract stroke is unaffected. The cylinder uses fixed elastomer bumpers for deceleration, and the -S magnet works with reed or 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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