Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 150mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MACJ50X150-20S
A 50 mm bore round-body mini cylinder built on a rolled stainless-steel barrel, the MACJ50X150-20S pushes 981 N at 0.5 MPa and trims its 150 mm extend stroke on site with a 20 mm adjuster window. It is double-acting with a variable air cushion at both ends, so end-of-stroke shock stays under control even at the top of the 30-800 mm/s speed range.
The hard-chrome plated 16 mm rod and grease-retaining piston seal shrug off washdown and damp shop air, a real edge over painted minis in food and outdoor lines. The built-in magnet is standard, so CMSG / DMSG / EMSG switches clip on without a special piston. At 0.5 MPa, plan on roughly 589 N of useful push when sizing real work, not the full rating.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MACJ50X150-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 MACJ50X150-20S Is Used
Tray eject on carton lines
Pushes filled trays off a conveyor lane; 981 N at 0.5 MPa clears jams and the 20 mm trim matches the lane width exactly.
Reject gate actuation
Swings or pushes defective packs off a belt; the dual air cushion keeps the gate from banging at 150 mm of travel.
Dairy washdown clamp
Clamps filler nozzles in a rinsed area; the stainless barrel and chrome rod outlast painted minis under daily hose-down.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-20S the Right Cylinder?
For lighter jobs the 40 mm bore MACJ delivers 628 N at 0.5 MPa; if you need more, the 63 mm bore reaches 1558 N. The 150 mm stroke is well within the 500 mm standard for this bore, but long strokes amplify side load - guide the load or add an I or Y rod knuckle if the tooling is off-axis. FA flange and LB foot mountings bolt on, and the adjuster stop shortens the extend stroke only; it does not hold position when air is lost.
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 MACJ50X150-20S FAQ
Push is 981.3 N and pull 880.8 N at 0.5 MPa; at 0.7 MPa the figures rise to 1373.8 N and 1233.1 N, with a theoretical maximum of 200.1 kgf at 1.0 MPa. The extend stroke is adjustable within a 20 mm window, both ends carry a variable air cushion, speed spans 30-800 mm/s, and operating pressure is 0.15-1.0 MPa (22-145 psi).
No. Every MA-series cylinder leaves the factory with a built-in magnet, so CMSG, DMSG and EMSG reed or electronic switches mount directly on the barrel for end-of-stroke or position signal.
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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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