Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 50mm 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
- Stroke50 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 MACJ32X50-20S
A 20 mm trim window makes the MACJ32X50-20S easy to dial in once it is on the machine: an external stop screw shortens the 50 mm extend stroke anywhere inside that range, and a variable air cushion at both ends keeps landing shock down so you can push the 30-800 mm/s speed band harder. AirTAC builds it as a riveted round body - stainless-steel barrel, aluminium-alloy covers and a 12 mm rod hard-chrome plated to 20 um - a package that stands up to washdown where painted minis corrode.
Numbers for this bore: 402.2 N push and 345.6 N pull at 0.5 MPa, rising to 563.0 N push at 0.7 MPa. Matched to a real part weight, the full push equals about 41 kg of vertical lift; halve that for a 2:1 margin and it lifts about 20 kg vertically. The magnet is fitted as standard, so DMSG or EMSG switches mount without a special piston. Operating pressure is 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 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 MACJ32X50-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 MACJ32X50-20S Is Used
Sorting lane diverter
Pushing cartons between conveyor lanes needs a brisk, repeatable shove; 402.2 N at 0.5 MPa moves a loaded tote and the 20 mm trim window lets the line crew set the exact parking position.
Label head advance
Advancing a labeling head onto packs on a packaging machine benefits from the both-end cushion, which stops the head knocking the product even at full line speed.
Sample drawer actuator
Lab and test-rig sample drawers cycle hundreds of times a day; the hard-chrome 12 mm rod resists wear and the standard magnet drives a DMSG switch for drawer-open confirmation.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X50-20S the Right Cylinder?
For sizing, look one step down and up: bore 25 delivers 245.3 N at 0.5 MPa and bore 40 delivers 628.3 N, and this 32 mm bore lands between at 402.2 N. Remember the adjuster is purely a stroke-end stop - it will not hold the piston against a back-driving load if the air drops, so add an external brake where position must be kept. Ordered here on the basic rear cover, with FA flange or LB foot available; port is 1/8 inch and rod thread is M10x1.25.
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 MACJ32X50-20S FAQ
Rated output is 402.2 N push and 345.6 N pull at 0.5 MPa, rising to 563.0 N push and 483.8 N pull at 0.7 MPa, with 82 kgf as the theoretical maximum at 1.0 MPa. Feed it 40 um filtered air between 0.15-1.0 MPa (22-145 psi); proof pressure is 1.5 MPa (215 psi) and stroke speed spans 30-800 mm/s.
The MACJ32X50-20S rolls its aluminium-alloy covers and stainless-steel block onto a precision stainless barrel, and the 12 mm carbon-steel rod carries a 20 um hard-chrome plating. That combination resists the mild corrosion, humidity and occasional washdown that quickly ruin painted-steel or plain-aluminium mini cylinders in food, outdoor and wet-process corners.
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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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