Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-50SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 60mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke60 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 ACQJ20X60-50SB
The AirTAC ACQJ20X60-50SB is a double-acting JIS compact cylinder featuring an external extend-stroke adjuster. A threaded stop with lock nut lets you set the forward end position between 10 and 60 mm directly on your equipment, avoiding parts swapping. The return stroke remains fixed at the full 60 mm.
Because the piston area stays constant, output matches a standard ACQ exactly: 157.1 N push and 117.8 N pull at 0.5 MPa. This unit includes a male M8x1.25 rod end for direct load coupling and a piston magnet for position sensing. Fixed elastomer bumpers absorb end-of-travel impact.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-50SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 60 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 ACQJ20X60-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 ACQJ20X60-50SB Is Used
machining Fixture Stops
Dial in the exact clamping reach on a CNC milling fixture without fabricating custom spacer blocks.
Product Changeover Guides
Shift the tucking arm extension depth rapidly on a cartoner when switching between different box widths.
Prototype Positioning
Establish optimal end-of-travel locations during laboratory testing of a new assembly mechanism.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-50SB the Right Cylinder?
If your application only needs a fixed 60 mm forward stroke, a standard ACQ20X60 is sufficient. For setups requiring end-position tuning without machining new mounts, this ACQJ variant provides a 50 mm adjustment window. When sizing, note the 20 mm bore yields 157.1 N push at 0.5 MPa; stepping down to a 16 mm bore drops this to 100.5 N, while a 25 mm bore raises it to 245.4 N. Confirm your ordering details: 20 mm bore, 60 mm full stroke, 50 mm window, magnet (-S), and male rod thread (-B).
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 ACQJ20X60-50SB FAQ
The usable extend range is 10 to 60 mm (60 mm full stroke minus the 50 mm window). The bore is 20 mm, port is M5x0.8, and force equals a standard ACQ: 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.
An external M8x1.25 threaded stop with a lock nut limits the forward stroke; the retract stroke is unaffected. Force remains identical to a standard cylinder because the piston area is unchanged. The built-in magnet (-S) works with reed or electronic solid-state switches, and fixed elastomer bumpers handle end deceleration.
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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