MI-CL Series · 2-Roll, 3-Roll & 4-Roll · Roll sizes 8×24" to 24×72" · 15 HP to 250 HP · Crown compensation · L-Type, Z-Type, I-Type configurations · GIDC Umbergaon, Gujarat.
A rubber calender machine is a precision processing machine used to produce continuous sheets of rubber at a controlled thickness by passing compounded rubber between two or more rotating, temperature-controlled rolls. The gap between the rolls — called the nip — determines the sheet thickness, which can be controlled to micron-level tolerances on modern calender machines.
Calendering is one of the most critical processes in rubber manufacturing. It is used for:
Modern Industries manufactures the MI-CL Series rubber calender machines — available in 2-roll, 3-roll, and 4-roll configurations, in L-Type, Inverted L-Type, Z-Type, and Vertically Stacked I-Type layouts, from compact 8″×24″ production units to large-scale 24″×72″ industrial calenders.
Five standard models from compact production through to large-scale industrial output. All models run at 1:1.25 friction ratio at 20–25 ft/min line speed.
| Model | Motor Power | Max Sheet Width | Friction Ratio | Line Speed |
|---|---|---|---|---|
| MI-CL-8×24 | 15 HP | 21" (533 mm) | 1:1.25 | 20 – 25 ft/min |
| MI-CL-10×30 | 20 HP | 27" (686 mm) | 1:1.25 | 20 – 25 ft/min |
| MI-CL-14×42 | 40 HP | 39" (991 mm) | 1:1.25 | 20 – 25 ft/min |
| MI-CL-18×54 | 75 HP | 51" (1295 mm) | 1:1.25 | 20 – 25 ft/min |
| MI-CL-24×72 | 250 HP | 69" (1753 mm) | 1:1.25 | 20 – 25 ft/min |
Custom sizes and variable-speed / 4-roll configurations available on request. Contact our engineering team with your required sheet width, thickness tolerance, and output speed for a custom specification.
| Roll Size | Metric Equivalent | Suitable For |
|---|---|---|
| 8" × 24" | 200 × 600 mm | Small-scale production / Lab testing |
| 12" × 36" | 300 × 900 mm | Medium production |
| 16" × 48" | 400 × 1200 mm | Heavy-duty industrial |
| 22" × 64" | 550 × 1600 mm | Large-scale manufacturing |
| Custom | On request | Variable speed / 4-roll / special configurations |
The simplest calender configuration — two rolls running at differential speeds with one nip. Used for sheeting, mastication, and simple rubber coating applications. Suitable for small-scale rubber sheet production, lab work, and single-pass frictioning of lightweight fabrics.
The most widely used configuration in rubber manufacturing. Three rolls create two nip points — the upper nip for feeding and the lower nip for final gauge control. The 3-roll calender handles the majority of rubber sheeting, frictioning, and skim coating applications across tyre cord, conveyor belt, and footwear rubber production.
Four rolls provide three nip points — allowing simultaneous frictioning from both sides of a fabric substrate in a single pass. The 4-roll calender is used for premium tyre cord frictioning where complete rubber penetration from both fabric faces is required in one cycle. Also used for double-faced skim coating and high-quality conveyor belt ply production.
Rolls arranged in an L-shape — the most common layout for 3-roll and 4-roll calenders. Provides good access to all nip points and easy fabric threading. Suitable for most rubber sheeting and frictioning applications. Standard on MI-CL Series unless otherwise specified.
Mirror image of the L-type. Used when production line layout requires feeding from the opposite direction. Common in plants where the calender must integrate with an upstream mixer on one side and a downstream wind-up station on the other.
Z-shaped roll arrangement — provides simultaneous access from both faces of the fabric substrate between adjacent nips. Preferred for tyre cord double-sided frictioning and coated textile applications where the substrate must not be pre-stressed by sharp bending over a roll before reaching the nip.
All rolls stacked vertically. Minimises floor space — the I-type is chosen when factory floor width is restricted. Also used when the fabric substrate must travel vertically for integration with overhead fabric supply or tension control systems.
The rolls on all MI-CL Series calenders are supported by heavy-duty anti-friction bearings housed in Steel Fabricated frames. This construction delivers:
Engineered for Perfectly Flat Sheets — Even Under High-Pressure Conditions Modern Industries calender machines are built with advanced roll-crossing and crown-compensation technologies.
Tyre cord frictioning — applying rubber to nylon, polyester, or steel cord fabric
Rubber sheeting for hospital mattress covers, operation table pads, rubber flooring tiles
Precision nip control and crown compensation for flawless chemical protective linings
Consistent thickness across the full sheet width is critical for these applications.
Waterproofing fabrics, tarpaulins, protective clothing, and industrial coatings
Rubber sheets for slipper soles, sandal bases, and safety boot insoles
Conveyor belt top and bottom covers are applied by running the belt fabric through the nip
Produced on 2-roll and 3-roll calender machines with continuous uniform thickness
Producing uniform rubber sheets at controlled thickness for further cutting or moulding by passing compounded rubber between temperature-controlled rolls.
Forcing rubber into the interstices of fabric (tyre cord, conveyor belt fabric) under pressure to achieve total penetration through the textile web substrate.
Applying a thin rubber layer over a substrate (fabric, textile, metal mesh) down to micron-level tolerances without stopping live production lines.
Bonding rubber layers together under heat and pressure, then cooling and collecting finished calendered rubber sheet or coated fabric under controlled tension.
Roll-crossing and crown-compensation technology as standard — perfectly flat sheets across the full working width even under high-pressure nip conditions. This is not an optional feature.
50+ years of rubber machinery manufacturing from GIDC Umbergaon — after-sales service, spare parts, and commissioning support across India and 19+ export countries.
Heavy-duty anti-friction bearings in steel fabricated frames — vibration-free operation at production speeds, micron-level tolerance maintenance throughout long production runs.
Fully automatic PLC control — line speed synchronisation and tension management. Integration with let-off and wind-up units via HMI for full-line automation and quality traceability.
Multiple roll configurations (2, 3, 4-roll) and layout types (L, Z, I) from a single manufacturer — one supplier for all calender requirements across different production stages.
