Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 160mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ20 mm
- Stroke160 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S
With 157 N of push at 0.5 MPa (219.8 N at 0.7 MPa), the MACJ20X160-30S is a double-acting bore-20 mini cylinder whose extend stroke can be trimmed anywhere inside a 30 mm window by an external stop screw, while a variable air cushion at both ends soaks up end-of-stroke shock. Speed runs 30-800 mm/s on air at 0.15-1.0 MPa (22-145 psi), filtered to 40 um.
The riveted body pairs a stainless-steel barrel with a 20 um hard-chrome plated rod, so it shrugs off washdown and humid plant air far better than painted minis. At bore 20 the rod is 8 mm, the port is 1/8", and the piston ships with a built-in magnet. Divide the 157 N push by gravity and you get about 16 kgf; with a 2:1 margin that means lifting roughly 8 kg vertically - enough to raise a small fixture or a lid.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S Is Used
Lab sampler lift
Raising a 6 kg sample carousel in an analytical lab: the 8 kg vertical-lift margin at 2:1 covers the load, and the 30 mm window lets technicians re-zero the top position whenever the carousel is swapped.
Carton flap tuck
On a small carton former, the cylinder tucks flaps through 160 mm of travel; the 30 mm adjustable window absorbs flap-height variation and the two-way cushion stops the tuck arm quietly at 500 mm/s.
Coolant valve stroke
Opening a slide valve on a machine-tool coolant skid, where the stainless barrel and chrome rod tolerate constant splashing and the stop screw dials the exact opening travel within 30 mm.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S the Right Cylinder?
Size from the force table: bore 16 delivers 100.5 N at 0.5 MPa and bore 25 reaches 245.3 N, so bore 20 at 157 N sits between them - drop to 16 for light gates, step up to 25 when the load climbs. The 160 mm stroke sits inside this bore's 300 mm standard range, but with an 8 mm rod keep side loads off the rod or carry them on external guides. The stop screw limits extend travel only; it will not hold a load when air is lost. FA flange and LB foot mounts, plus I and Y knuckles, cover the usual fixings, and the 1/8" port keeps fittings small.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X160-30S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa those figures rise to 219.8 N push and 184.7 N pull. The theoretical maximum at 1.0 MPa is 32.0 kgf. Bore is 20 mm, rod 8 mm, port 1/8", rod thread M8x1.25, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi).
The external stop screw trims the extend stroke anywhere within the 30 mm window without changing the body length, and the variable air cushion at both ends can be opened or closed to soften arrival. Run faster or carry more mass and simply add cushion; the adjuster itself is a mechanical end stop, not a mid-stroke or load-holding lock.
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.
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