Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-75 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 25–100mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke100 mm
- Adjustable25–100 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 MBLCJ20X100-75
The AirTAC MBLCJ20X100-75 is a compact double-acting mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. You can trim up to 75mm of travel at the rear, giving an effective usable stroke window of 25 to 100mm. Driven by a Ø8mm carbon-steel rod with 20µm hard-chrome plating, it delivers 157N push and 132N pull force at 0.5MPa. The riveted aluminum barrel keeps the assembly light for tight spaces, while the heterogeneous two-way grease-retaining piston seal ensures lasting lubrication.
This model uses a G1/8 port and an M8x1.25 rod-end thread. Because this SKU lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor. The adjustable air cushion lets you screw-tune end-of-stroke deceleration to protect the end covers from impact during faster moves, unlike the fixed rubber bumper found on the base MBLJ series. Note that the rear stopper sets the travel end position; it does not lock or hold the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 25–100 mm (trim 75 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 MBLCJ20X100-75
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ20X100-75 Is Used
PCB Depaneling Saw
Drives the linear blade carriage in a depaneling router; the 25-100mm stroke window allows precise depth trimming, while the air cushion protects the aluminum end covers from rapid reversals.
Textile Tension Arm
Actuates a fabric guide arm in a knitting machine; 157N push force maintains light tension, and the tunable cushion prevents sudden snaps that would break delicate yarns.
Label Dispenser Gate
Powers the peel edge on a roll-fed labeling machine; the compact 20mm bore fits the tight chassis, and the cushioned stroke end prevents the mechanism from hammering itself apart during 800mm/s runs.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-75 the Right Cylinder?
With a 157N push force at 0.5MPa, stepping down is not an option as this is the smallest available MBLCJ bore. If you need more force, the next size up is the 25mm bore, which provides 245N push and 206N pull at 0.5MPa. Choose this MBLCJ variant when you need tunable end-cushioning to prevent shock at stroke ends, whereas the MBLJ offers only a fixed bumper, and the MBLC provides fixed stroke lengths without the rear adjuster.
Remember that the rear adjuster is a travel stop, not a lock; the cushion only decelerates, so neither will hold a load statically without live air pressure. Mounting is limited to Basic, FA (flange), or LB (foot) styles—there is no SDB pivot or back-cover option. To match this exact replacement, specify bore 20, stroke 100, adjust code 75, G1/8 port, PT thread, and no magnet. At a 100mm stroke, the 8mm rod is susceptible to bending under side loads, so an external guide rail is recommended.
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 MBLCJ20X100-75 FAQ
At 0.5MPa, this 20mm bore cylinder provides 157N push and 132N pull. At 0.7MPa, the push force is 220N. The maximum theoretical force is 32kgf at 1.0MPa.
No. This specific SKU lacks the -S code, meaning no built-in magnet is fitted, so it cannot trigger CMSG, DMSG, or EMSG switches. The rear 75mm adjuster sets the travel end position (usable window 25-100mm), but it is a mechanical stop, not a lock.
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Standard models are processed and dispatched in 3-5 business days.
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