Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X125-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X125-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 125mm 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
- Stroke125 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 MACJ16X125-30S
Between 95 and 125 mm - that is the working band the -30 window gives the extend stroke of this MACJ16X125-30S, set on the machine without dismantling anything. It is double-acting, cushioned by a variable air cushion at both ends, and rated for 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s.
Bore 16 output is 100.5 N push and 86.4 N pull at 0.5 MPa, which reads as roughly 5 kg of vertical lift at a 2:1 margin - enough for small gates, probes and clamps. The stainless round barrel with a 20 um hard-chrome rod on a 6 mm shaft is the reason it survives coolant spray that kills painted mini cylinders. Standard magnet, standard sensor support: CMSG, DMSG and EMSG mount directly.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X125-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X125-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 125 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 MACJ16X125-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×125 | 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 (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 MACJ16X125-30S Is Used
Lane divider blade on a PET bottle conveyor
Splits one stream of empty 500 ml bottles into two lanes; 100.5 N push at 0.5 MPa far exceeds what light bottles impose, and the 30 mm window suits several lane pitches.
Tray ejector in a clinical analyzer
Ejects a 96-well tray from the draw position on a compact chemistry analyzer; the cushion eases the tray into its nest without a clatter.
Bench fixture swing stop
Sets an adjustable end stop on a small assembly jig so different product lengths share one fixture; a CMSG switch wired to the magnet confirms the stop is retracted.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X125-30S the Right Cylinder?
Choose this bore when the load sits near 60 N of working push; if the duty creeps toward 100 N and beyond, bore 20 with its 157.0 N push / 131.9 N pull at 0.5 MPa is the next step up. The 30 mm window covers most model-change trims on packaging and assembly tooling. Mount via FA flange or LB foot and fit I or Y knuckles for swivelling loads. Two cautions: keep side loads small, since a 6 mm rod at 125 mm has little bending reserve, and remember the stop screw never acts as a brake - an unpressurised piston will drift.
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 MACJ16X125-30S FAQ
Retraction pulls 86.4 N and extension pushes 100.5 N at 0.5 MPa; step the supply to 0.7 MPa and those become 120.9 N and 140.7 N. At the 1.0 MPa ceiling the theoretical force is 20.5 kgf. For day-to-day sizing, count on about 60 N of real push at 0.5 MPa.
The variable air cushion at each end throttles the last stretch of travel, so cycles at up to 800 mm/s finish quietly instead of hammering the riveted covers. Set it softer for fast or heavy strokes and firmer for light, slow ones.
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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.
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Most inquiries answered within 7-8 hours.
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