Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X30-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X30-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 30mm 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.
- BoreØ32 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MACJ32X30-20S
A 32 mm bore in a compact stainless round body, the MACJ32X30-20S offers a 30 mm stroke that can be shortened by up to 20 mm on site through its adjustable extend stop. Double-acting with variable air cushion at each end, it pushes 402.2 N and pulls 345.6 N at 0.5 MPa, runs on 0.15-1.0 MPa (22-145 psi) filtered air, and cycles at 30-800 mm/s.
Construction is the classic MA recipe: a riveted stainless barrel, aluminium-alloy covers and a hard-chrome plated rod that tolerates damp and dusty shop air. The piston magnet is included as standard equipment, so CMSG, DMSG and EMSG switches snap on for end-position sensing. As a rule of thumb, use about 241 N of that 0.5 MPa rating for real work - it will hoist roughly 20 kg vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X30-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X30-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 500 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MACJ32X30-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -20 | 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 MACJ32X30-20S Is Used
Small-lid snap press
Snaps caps onto jars or connector housings with 402 N of push; the 20 mm window trims press depth when products change.
Parts kickoff from a vibratory bowl
Ejects sorted parts off a bowl track; the short stroke plus cushioned ends keeps the cell quiet at high cycle rates.
Pallet sensor flag driver
Raises a flag into a pallet-present sensor path at a conveyor stop, with a DMSG switch reporting the flag state.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X30-20S the Right Cylinder?
Need less force? Bore 25 delivers 245.3 N push at 0.5 MPa at a lower cost; need more? Bore 40 steps up to 628.3 N. The 20 mm window trims the extend stroke downward only, and the stop screw is purely a positional end stop - it is not a load-holding brake, so add a check or lock valve if the load must hang on air loss. FA flange or LB foot mounting covers most frames, and I / Y rod knuckles simplify linkage on swing or press motions. If adjustability is unnecessary, the fixed-stroke MAC in the same bore is an alternative.
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 MACJ32X30-20S FAQ
Push is 402.2 N and pull 345.6 N at 0.5 MPa; at 0.7 MPa push reaches 563.0 N, and the 1.0 MPa theoretical ceiling is 82 kgf. The 32 mm bore takes a 1/8 inch port, and the 12 mm rod carries an M10x1.25 male thread.
Yes. Variable air cushioning at both ends is adjustable, so you can soften the landing even at 800 mm/s speeds or with heavier snap-press loads. Remember the 20 mm extend stop is a mechanical limit only - on air loss the piston can still drift.
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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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