Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 180mm 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
- Stroke180 mm
- Port size1/4"
- Acting typeDouble acting, double rod, 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 MACJ50X180-20S
Behind a 20 mm fine-trim window, the MACJ50X180-20S gives you bore 50 muscle with precise extend tuning.
Construction is a riveted round body: stainless-steel tube, hard-chrome plated 16 mm rod, aluminium covers, and a two-way piston seal that also stores grease for longer service.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 180 mm |
| Acting type | Double acting, double rod, 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 kgf |
MAJ / MACJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×180 | 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 (double rod, 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 MACJ50X180-20S Is Used
Bench press die set
Trim the extend stop within the 20 mm window to set die position on a small press, working at about 589 N of continuous force.
Glue-bead indexer
Index panels under a glue head with cushioned stops, while the built-in magnet and a DMSG switch confirm each 180 mm cycle.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X180-20S the Right Cylinder?
The 180 mm stroke on a 16 mm rod means side loads should be guided externally to protect the rod and seals. Choose FA flange or LB foot mounting, add I or Y knuckles for linkages, and rely on the standard magnet for CMSG, DMSG or EMSG position switches.
Remember the stop screw is a position limit at the extend end, never a brake; if air fails, the piston can creep, so fit a holding valve for suspended loads.
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 MACJ50X180-20S FAQ
Pressure range is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the extend stroke is adjustable across a 20 mm window with variable air cushion both ends.
The riveted stainless barrel and hard-chrome plated rod resist corrosion in damp, food or outdoor spots that destroy painted-steel minis, and the grease-storing piston seal extends service intervals without extra lubrication.
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.
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