Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 50mm 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
- Stroke50 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 MACJ50X50-50S
With a 50 mm bore and just 50 mm of travel, this MACJ covers short push-off steps in tight machinery, yet it still delivers 981 N of push force at 0.5 MPa (up to 1374 N at 0.7 MPa). It is double-acting with an adjustable extend stroke: the -50 window lets the stop screw shorten the extend travel anywhere across its full length, and a variable air cushion at each end soaks up end-of-stroke shock. The barrel is stainless steel with riveted aluminium covers, and the hard-chrome plated rod shrugs off washdown better than painted mini cylinders.
Do the lifting math before you buy: at 0.5 MPa it holds about 589 N of real working force with headroom, and it can raise roughly 100 kg vertically in theory - plan for around 50 kg if you want a 2:1 margin. The piston magnet is built in as standard, so CMSG, DMSG or EMSG switches clamp straight on. Speed range 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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 MACJ50X50-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -50 | 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 MACJ50X50-50S Is Used
Pneumatic press for PCB spacer insertion
A 50 mm stroke fits bench-top electronics presses; 981 N at 0.5 MPa seats spacers cleanly, and the trim window dials in the exact press depth.
Carton flap tucker on a food packaging line
Short, fast flap-tucking at 30-800 mm/s with dual cushions keeps noise down in rinse-prone areas where the stainless barrel earns its keep.
Stop-and-eject gate on a bottle filler
The stainless round body shrugs off syrup spills and hose-down; the -50 adjuster sets the exact eject position so bottles clear the gate every cycle.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S the Right Cylinder?
For this force class, bore 40 tops out at 628 N push at 0.5 MPa while bore 63 reaches 1558 N, so the 50 mm bore sits in the middle for medium clamp and press jobs. Note the adjuster is a mechanical end stop for the extend stroke, not a mid-stroke lock - if supply air drops, the piston can still drift, so use a blocking valve where position must persist. Mount it FA flange or LB foot; I and Y rod knuckles are available (the adjustable version has no SDB or back-cover code). With only 50 mm of stroke there is no rod-bending concern, a simple alignment check is enough.
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 MACJ50X50-50S FAQ
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa that rises to 1373.8 N push and 1233.1 N pull. Theoretical maximum is 200.1 kgf at 1.0 MPa. The bore is 50 mm with a 16 mm rod, 1/4" ports, M14x1.5 male rod thread, an extend stroke adjustable across the full 50 mm window and a variable air cushion at both ends. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
No. The -50 adjuster is a stop screw that shortens the extend stroke within its window; it never locks the piston mid-stroke, and on air loss the rod can still move. Treat it as a stroke-position setter only, and add a blocking valve if the load has to stay put.
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 MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X50-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.