Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100SB 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 ACQJ20X100-100SB
The AirTAC ACQJ20X100-100SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can tune the usable extend range from 0 up to 100 mm directly on the machine without swapping parts, while the retract stroke remains unaffected. This unit includes a male M8x1.25 piston rod end and a built-in magnet for sensing.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 157.1 N push at 0.5 MPa. The cylinder body features magnetic-switch grooves and fixed elastomer bumpers at both ends for compact, reliable deceleration.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100SB |
|---|---|
| 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 ACQJ20X100-100SB
| 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 ACQJ20X100-100SB Is Used
Product Changeover Stops
Quickly dial in a new extend end position from 0 to 100 mm on a machining fixture when switching between part families.
Trial End Positions
Fine-tune the pusher stroke on a packaging line to test different carton sizes without machining new spacers.
Setup-Varying Fixtures
Adjust the clamping reach on automated assembly equipment to accommodate varying material thicknesses.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100SB the Right Cylinder?
When sizing this 20 mm bore actuator, dropping to a 16 mm bore yields 100.5 N push force, whereas stepping up to a 25 mm bore provides 245.4 N at 0.5 MPa. If your extend end position never varies, a fixed-stroke ACQ cylinder is sufficient. For this adjustable model, confirm the 20 mm bore, 100 mm full stroke, 100 mm window, the -S magnet for electronic or reed switches, 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 ACQJ20X100-100SB 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 100 mm with a 100 mm adjustment window, giving a usable extend range of 0-100 mm. The piston rod is 10 mm, the port is M5x0.8, the male rod-end thread is M8x1.25, and the external adjuster thread is M8x1.25.
No, the external threaded stop alters the extend stroke length only, so the force remains identical to a standard ACQ. Deceleration is handled by fixed elastomer bumpers, not an adjustable air cushion. Note that this cylinder does 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 ACQJ20X100-100SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.