Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 500mm 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
- Stroke500 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 MACJ50X500-75S
Spanning 500 mm with a 75 mm on-site trim window, this is the most flexible long-stroke option in the 50 mm family. Expect 981.3 N of push at 0.5 MPa and 1373.8 N at 0.7 MPa, with variable cushions at both ends letting you run up to 800 mm/s without hammering the covers.
Construction is a rolled stainless-steel round barrel with a hard-chrome plated carbon-steel rod - a pair that resists corrosion in damp plants and outdoor cells. The magnet is standard on every piston, so CMSG, DMSG or EMSG switches drop on for position feedback. Sized conservatively, plan on about 589 N of working force at 0.5 MPa, or roughly 50 kg of vertical lifting capability with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 MACJ50X500-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -75 | 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 MACJ50X500-75S Is Used
Stacker elevator lifts
Raising tote boxes of about 40 kg between mezzanine levels; the bore lifts roughly 50 kg vertically at 0.5 MPa with margin to spare.
Textile beam doffing arms
Pushing full yarn beams off their chocks at end of doff, cushioned landings protecting the beam edges at up to 800 mm/s.
Press feed length stops
Setting cut lengths on a coil feed line; the 75 mm trim window covers multiple blank sizes on one cylinder without re-gapping.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-75S the Right Cylinder?
This 50 mm bore sits between the 40 mm (628.3 N at 0.5 MPa) and 63 mm (1557.9 N) sizes - pick it when your load sits near 900 N after friction losses. The 75 mm window gives the widest tuning range here, but the stop only limits the extend stroke; it will not lock the rod against back-driving when air fails. FA flange and LB foot mounts both suit a 500 mm stroke; keep the load guided so the 16 mm rod sees pure axial force.
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 MACJ50X500-75S FAQ
At 0.5 MPa the cylinder develops 981.3 N on extend and 880.8 N on retract. Raise supply to 0.7 MPa and those figures become 1373.8 N and 1233.1 N. The maximum theoretical output at 1.0 MPa is 200.1 kgf. Speed range is 30-800 mm/s.
No. Every MA-series cylinder leaves the factory with a magnet built into the piston, so CMSG, DMSG and EMSG reed or electronic switches attach directly to the stainless barrel. Add them at order time or retrofit them later without opening the cylinder.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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