Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 225mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 125–225mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke225 mm
- Adjustable125–225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100
The AirTAC MBLCJ20X225-100 is a compact double-acting aluminum mini cylinder featuring a rear travel stopper and screw-tunable air cushions at both ends. The rear adjuster allows you to trim up to 100 mm of travel, creating a usable extension window of 125 to 225 mm. Driven by an 8 mm carbon-steel rod with 20 µm hard-chrome plating, it delivers 157 N of push force and 132 N of pull force at 0.5 MPa, making it suitable for light-duty positioning tasks.
Unlike the base MBLJ which relies on a fixed rubber bumper, this MBLCJ variant lets you dial in end-of-stroke deceleration to absorb kinetic energy from faster moves, protecting the riveted aluminum end covers. Because this specific SKU lacks the -S magnet suffix, it cannot accept a CMSG reed or DMSG electronic position sensor. The overall length is extended by the adjustment range, and the G1/8 port feeds the 20 mm bore to cycle at 30-800 mm/s.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 225 mm |
| Adjustable window | 125–225 mm (trim 100 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×225 | Nominal stroke length in mm. |
| -100 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 Is Used
PCB Pick & Place
Positions surface mount heads in electronics assembly, using the 125-225 mm stroke window to dial in exact insertion depth while the air cushion prevents end-cover impact during rapid 30-800 mm/s cycles.
Dispenser Valve Actuation
Drives metering valves for adhesive application on packaging lines, leveraging the 157 N push force to open stiff nozzles and the rear stopper to precisely trim dispense travel without drift.
Light-Part Ejection
Ejects small plastic molds from thermoforming machines, where the tunable cushion absorbs the kinetic energy of the 225 mm stroke to protect the 8 mm rod from snapping under sudden stops.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 the Right Cylinder?
With a 157 N push force at 0.5 MPa, stepping down to a 16 mm bore is not an option in this series, so your only neighbor is the 25 mm bore, which increases output to 245 N push and 206 N pull at 0.5 MPa. Choose the 25 mm if your payload exceeds the 20 mm limits; stick with this 20 mm if you need minimal footprint and lower air consumption. This MBLCJ provides tunable end-cushioning, whereas the MBLJ variant uses a fixed bumper, and the MBLC variant offers a fixed stroke without the 100 mm rear stopper.
Remember that the rear stroke adjuster is a travel stop, not a mechanical lock, and the adjustable cushion only decelerates the load, so neither will hold position against drift without live air pressure. Mounting is restricted to Basic, FA flange, or LB foot styles, with no SDB pivot or back-cover options available. For an exact replacement, match the 20 mm bore, 225 mm stroke, 100 mm adjust code, G1/8 PT port thread, and note the absence of a magnet. Because the stroke is 225 mm on an 8 mm rod, external guide rails are recommended to prevent rod bending and premature seal wear.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-100 FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push force and 132 N pull force. At 0.7 MPa, the push force reaches 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
This SKU lacks the -S suffix, meaning no built-in magnet is fitted, so it cannot accept CMSG, DMSG, or EMSG position switches. The 100 mm rear adjuster acts as a travel stop to set your 125-225 mm window, and the air cushion only decelerates the piston; neither feature mechanically locks or holds the load against drift.
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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.
Related AirTAC Adjustable-Stroke Cylinders
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