Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke100 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 ACQJ20X100-10B
The AirTAC ACQJ20X100-10B is a double-acting, single-rod JIS compact cylinder featuring an external M8x1.25 threaded stop with a lock nut. This mechanism limits the extend end position, providing a usable forward range of 90-100 mm from the 100 mm full stroke, while the retract stroke remains unaffected. It allows on-machine end-position tuning without swapping components.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, yielding 157.1 N push and 117.8 N pull at 0.5 MPa. The 20 mm bore uses an M5x0.8 port, a male M8x1.25 rod-end thread for direct load coupling, and fixed elastomer bumpers. The body includes sensor grooves, though this specific unit ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 100 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 ACQJ20X100-10B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 ACQJ20X100-10B Is Used
Machining Fixture Stops
Dial in the exact 90-100 mm extend position during CNC fixture setup to accommodate varying raw material thicknesses without machining new stop parts.
Carton Changeover
Adjust the extend stroke on the fly during packaging line product changeovers to hit different sealing or folding end positions rapidly.
Prototype Testing Jigs
Probe trial end positions on new automated test equipment, fine-tuning the extend limit by up to 10 mm until the kinematics are proven.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B the Right Cylinder?
When sizing this 20 mm bore actuator, stepping down to a 16 mm bore drops the 0.5 MPa push force to 100.5 N, while stepping up to a 25 mm bore increases it to 245.4 N. If the application never requires altering the extend end-point, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 20 mm bore, 100 mm full stroke, 10 mm adjustable window, the male M8x1.25 rod thread, and the absence of a magnet.
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 ACQJ20X100-10B FAQ
It 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 100 mm with a 10 mm window, giving a usable extend range of 90-100 mm. The port is M5x0.8, the male rod thread is M8x1.25, and the external adjuster thread is M8x1.25.
The external threaded stop with a lock nut physically limits how far the rod extends, shortening the stroke length without changing the piston area, so the force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration and ships without a sensor magnet. It will not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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
Request a Quote for Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-10B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.