210 330mm Hydraulic Battery Electrode Calendaring Machine Heated Roller Press

Product Overview

This hydraulic battery electrode calendaring machine is engineered to densify coated electrode sheets and achieve controlled final thickness through precisely managed roll compression. Its 210 x 330 mm rolls, electro-hydraulic loading arrangement, servo-adjusted roll gap, and variable-speed drive provide a controlled processing platform for electrode production work where thickness consistency directly affects downstream cell assembly and evaluation.

The equipment is intended for battery electrode sheets and foil-related processing in battery research, pilot production, and advanced materials laboratories. It supports roll pressing after coating, helping users set electrode compaction conditions in accordance with the coating thickness and target sheet thickness required by their process.

Built around a cast-steel portal frame, dedicated rolling-mill bearings, hardened alloy-steel rolls, and a closed-loop heated-roll system, this unit is configured for demanding repeated operation. The horizontal upper-and-lower roll layout, monitored gap adjustment, roll-surface cleaning provision, and safety protection devices support stable, practical operation in controlled laboratory and production environments.

Key Features

• 210 x 330 mm precision roll format: The rolls combine a 210 mm roll-face diameter with a 330 mm roll-face width, while the effective usable width is 300 mm. This configuration provides a defined processing area for battery electrode sheets while retaining controlled edge clearance during operation.

• Electro-hydraulic pressing system: An electric hydraulic pump applies pressure through two hydraulic cylinders with a 63 mm bore and 15 mm stroke. The system is specified with 40 MPa working oil pressure, 60 MPa maximum pressure, and a maximum working pressure of 37 T x 2 cylinders.

• Servo-controlled roll-gap adjustment: Operators set the roll gap through the human-machine interface by changing the hydraulic pressure applied to the rolls. The roll movement value is displayed on the interface screen, allowing the process setting to be observed during adjustment instead of relying only on manual mechanical positioning.

• 0 to 2.0 mm gap range: The adjustable roll seam supports processing conditions across a 0 to 2.0 mm range. This gives laboratories a defined setting window for correlating coated-sheet input thickness, compaction, and final electrode thickness.

• Variable-speed rolling drive: A variable-frequency motor and cycloidal pinwheel reducer provide stepless speed adjustment. The equipment operates at 2 to 8 r/min and delivers a machine efficiency range of 0.8 to 5 m/min, enabling users to select a feed rate suited to their material and process sequence.

• High-hardness chrome-plated rolls: The rolls use Cr3-series high-alloy cold-roll steel with surface hardness above HRC66, an 18 to 25 mm quench-layer depth, and chrome plating of at least 0.18 mm. These construction details are specified to support a durable roll surface for repeated electrode compression work.

• Controlled roll geometry and finish: Roll radial runout is specified at no more than +/-0.002 mm, and roll-surface roughness is Ra <=0.04. These values are important for maintaining a consistent contact condition across the working width and for reducing process variation associated with roll-surface quality.

• Integrated heated-roll capability: Upper and lower rolls each have 1.6 kW heating power. A closed-loop system comprising a temperature controller, solid-state relay, and K-type thermocouple provides temperature control accuracy of +/-2 degrees C up to a maximum temperature of 130 degrees C.

• Production-oriented mechanical layout: The unit integrates a cast-steel portal frame, rolling-mill-specific bearings, feed protection plate, roll-surface cleaning mechanism, electrical control system, and gas-liquid pressurization system. The upper and lower rolls are arranged horizontally to establish a direct, stable pressing path for the electrode sheet.

• Visible operating protection: Two dial indicators form part of the safety protection arrangement and are marked with warning color. The equipment appearance is specified in computer gray and blue, with computer gray identified as the standard equipment color.

Applications

Technical Specifications

Why Choose This Product

• Purpose-built rolling architecture: The cast-steel portal frame, rolling-mill-specific bearings, cycloidal pinwheel reducer, and electro-hydraulic pressure arrangement create a dedicated platform for electrode calendaring rather than a general-purpose compression setup.

• Precision-focused roll construction: High-alloy cold-roll steel, hardness above HRC66, deep quench treatment, chrome plating, controlled radial runout, and Ra <=0.04 roll finish address the mechanical details that influence long-term rolling consistency.

• Process settings remain visible and controllable: HMI-based roll-gap adjustment displays roll movement values, while variable-frequency speed control provides stepless adjustment. Together, these controls support disciplined process development and repeatable operating conditions.

• Heated processing capability is integrated: The closed-loop upper- and lower-roll heating system combines defined heating power, K-type temperature sensing, and +/-2 degrees C accuracy, allowing temperature to be managed as a process variable alongside pressure and gap.

• Configured for practical laboratory operation: A feed protection plate, roll-surface cleaning mechanism, dial-indicator safety protection, defined lubrication requirement, and specified standard appearance reflect attention to maintainable day-to-day equipment use.

Contact us for a quote or a custom solution matched to your battery electrode sheet dimensions, process settings, and laboratory workflow.

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