Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 300mm stroke, M5×0.8 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.
- BoreØ16 mm
- Stroke300 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM6×1.0
- 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 MACJ16X300-50S
A long-travel member of the MA family, the MACJ16X300-50S is a double-acting round-body mini cylinder with a 300 mm stroke that can be trimmed by up to 50 mm on site. Air works the piston both ways, and a variable cushion at each end soaks up end-of-stroke shock. The stainless-steel barrel and hard-chrome plated 6 mm rod shrug off washdown and damp shop air, while the riveted aluminium covers keep the body sealed. Ports are M5x0.8, the rod thread is M6x1.0, and pressure runs 0.15-1.0 MPa (22-145 psi).
Push force at 0.5 MPa is 100.5 N with 86.4 N on retract, so plan on roughly 60 N of genuine work per stroke instead of the full rating. That same figure means the bore lifts about 5 kg vertically once a 2:1 margin is applied. The built-in magnet is standard, so CMSG, DMSG or EMSG switches clip on without a special piston, and speeds up to 800 mm/s stay smooth thanks to the dual cushions.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 300 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MACJ16X300-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×300 | 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 MACJ16X300-50S Is Used
Indexing conveyor ejector
A 300 mm stroke clears a full lane width on a small-parts conveyor, with the 50 mm window letting one cylinder serve several product sizes.
Lab washer rack pusher
The stainless barrel tolerates splashes in a washer bay, pushing sample racks of about 5 kg with margin to spare.
Cleanroom door latch actuator
Retracts a sliding pass-through latch over a long travel, and the trim screw dials in the exact latch position.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-50S the Right Cylinder?
Step up to the 20 mm bore (157.0 N push at 0.5 MPa) or the 25 mm bore (245.3 N) if your load needs more than about 60 N of usable force. On a 300 mm stroke, guide the load externally; side loads bend a 6 mm rod quickly. The stop screw sets the extend stroke only - it is an end stop, not a mid-stroke lock, so on air loss the piston can still drift. Mount with an FA flange or LB foot, and pick I or Y rod knuckles where a pivoting joint helps; adjustable-stroke versions omit the SDB and back-cover code. Pair with MAC (fixed stroke) when trimming is unnecessary.
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 MACJ16X300-50S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 86.4 N; at 0.7 MPa the figures rise to 140.7 N and 120.9 N. Theoretical maximum is 20.5 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s.
Usually not. The variable air cushion at both ends can be tuned to decelerate the load, so moderate speeds and weights stop softly without external dampers. For very fast or heavy loads, add external stops.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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