Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-30S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-30S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 225mm 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
- Stroke225 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 MACJ50X225-30S
Trim room of 30 mm makes the MACJ50X225-30S easy to live with when line changes happen weekly: back the stop screw off or in and the extend stroke settles anywhere from 195 to 225 mm. Force output reaches 981.3 N at 0.5 MPa and 1373.8 N at 0.7 MPa, backed by a variable cushion at both ends that keeps 30-800 mm/s travel from slamming the aluminium covers. Supply pressure spans 0.15-1.0 MPa (22-145 psi).
For sizing, count on close to 589 N of usable push at 0.5 MPa once friction and pressure droop are covered. The rolled, riveted stainless body tolerates washdown and mild corrosion far better than painted minis, and with the magnet included as standard, CMSG / DMSG / EMSG switches mount without ordering a special piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 225 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 MACJ50X225-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -30 | 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 MACJ50X225-30S Is Used
Outdoor gate latch
Drives the latch on a weather-exposed warehouse gate; stainless tube and chrome rod outlast painted minis left standing in the rain.
Case ejector at sealer exit
Ejects sealed cases onto a takeaway belt with 981.3 N at 0.5 MPa, extend length trimmed across the 30 mm band to match case sizes.
Snap-fit clinch head
Clinches light snap-fit clips in an appliance sub-assembly, 1373.8 N at 0.7 MPa available and cushioning set soft on the final approach.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-30S the Right Cylinder?
Downsizing to a 40 mm bore costs force (628.3 N at 0.5 MPa); upsizing to 63 mm buys 1557.9 N. This bore uses 1/4 in. ports and an M14x1.5 male rod thread. Bolt it down by FA flange or LB foot, or hang an I / Y knuckle on the rod end. The stop screw trims extend within the ordered 30 mm band; treat it as a stroke setting, never as a brake, because the piston can still creep if supply air is lost. At 225 mm the rod is long enough that off-axis loads should ride on external slides.
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 MACJ50X225-30S FAQ
Bore 50 mm, stroke 225 mm with a 30 mm adjustable window, double-acting, variable cushion both ends, speed 30-800 mm/s, port 1/4 in., rod thread M14x1.5.
Fix it by FA flange or LB foot, or add an I or Y rod knuckle where the load must swivel. The standard-built magnet accepts CMSG / DMSG / EMSG switches anywhere along the 50 mm barrel for end-of-stroke signalling.
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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