Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X280-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X280-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 280mm 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
- Stroke280 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 MACJ50X280-10S
A 10 mm adjuster makes this 280 mm stroke easy to match to an existing machine footprint: the external stop screw shortens the extend travel within the window while the double-acting piston and variable both-end cushions keep stops quiet. At 0.5 MPa (72 psi) the 50 mm bore develops 981 N push and 881 N pull; at 0.7 MPa (102 psi) push rises to 1374 N.
In vertical terms the bore equates to about 100 kgf at 0.5 MPa (72 psi), so halving for a 2:1 margin it lifts roughly 50 kg. The rolling-packed stainless barrel, aluminium covers and 20 um hard-chrome plated 16 mm rod stand up to humidity and mild washdown, and the piston's two-way seal stores grease between service intervals. The magnet is standard equipment, ready for CMSG, DMSG or EMSG switches.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X280-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X280-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 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 MACJ50X280-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×280 | Stroke length in mm. |
| -10 | 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 MACJ50X280-10S Is Used
Palletizer row pusher
Squares a full layer of 600 mm cartons before strapping; 1374 N push at 0.7 MPa (102 psi) clears sticky layers without slamming thanks to the end cushions.
Clamp fixture on a machining cell
Holds aluminium extrusions against a jig; the 10 mm trim dials clamp travel to the part, and about 589 N of working force at 0.5 MPa (72 psi) is ample for the job.
Tote diverter in a DC sorter
Swaps totes between lanes on a sortation loop; the standard magnet plus a DMSG switch tells the controller each divert completed.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X280-10S the Right Cylinder?
If 981 N at 0.5 MPa (72 psi) is more than needed, the 40 mm bore gives 628 N; if more force is wanted, the 63 mm bore reaches 1558 N. Keep in mind the 10 mm adjuster only fixes extend length, it is not a load-holding lock, and the piston still moves if pressure drops, so add a check or locking valve for suspended loads. FA flange and LB foot mounts cover fixing; I and Y knuckles handle slight misalignment. Across a 280 mm stroke, guide the load externally so side forces do not bend the rod.
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 MACJ50X280-10S FAQ
At 0.5 MPa (72 psi) it pushes 981 N and pulls 881 N; at 0.7 MPa (102 psi), 1374 N push and 1233 N pull; theoretical maximum 200.1 kgf at 1.0 MPa (145 psi). The extend stroke is trimmable by up to 10 mm via the stop screw inside the -10 window. Operating pressure spans 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
The barrel is stainless steel riveted to the covers, with a 16 mm hard-chrome rod, so condensation, splashes and outdoor exposure cause far less trouble than on painted or bare-aluminium bodies. Variable cushions at both ends let you raise line speed without hammering the covers, and the built-in magnet is standard, so CMSG or EMSG switches need no special piston.
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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