Product Introduction / 产品简介
The Pneumatic sheet press uses compressed air to drive a cylinder that applies controlled pressure to wet handsheets, performing standardized pressing and dewatering. The pneumatic system allows precise pressure adjustment and automatic maintenance, eliminating the complex mechanical transmission mechanisms found in manual presses. The pressing process effectively removes excess water, compacts the fiber structure, enhances fiber-to-fiber bonding, and improves sheet density, smoothness, tensile strength, and burst strength. Used in conjunction with a standard sheet former, it forms an integral part of the complete laboratory handsheet preparation system: forming, pressing, and drying.

Key Features / 核心特点
Pneumatic Operation for Ease of Use Compressed air-driven system with push-button operation; no complex mechanical drive, easy maintenance, clean and comfortable to use.
Precise Pressure Adjustment Working pressure freely adjustable from 0 to 0.9 MPa, with standard pressing pressure of 0.414 MPa to meet the requirements of different pulp types and sheet grammages.
Compliance with Industry Standards Fully meets QB/T 3703-1999 standard requirements, ensuring standardized specimen preparation and comparable test results across laboratories.
Efficient Dewatering and Property Enhancement Rapidly removes excess water from sheets, significantly increasing density, smoothness, and physical strength for subsequent drying and testing.
Wide Specimen Accommodation Pressing platen size of 310×310×200 mm accommodates multiple standard handsheets simultaneously or larger sheet specimens.
Compact and Space-Saving Overall dimensions of 570×400×900 mm; fits conveniently on laboratory benchtops, conserving valuable workspace.
Ready-to-Use Package Supplied complete with an air compressor; no additional air source equipment purchase required.
Safe, Reliable, and Durable Pneumatic control avoids electrical safety hazards; robust construction with corrosion-resistant critical components for long-term frequent laboratory use.

Main Technical Specifications / 主要技术参数

FAQ / 常见问题
1. What advantages does a pneumatic sheet press have over a manual screw press?
The pneumatic press is driven by compressed air, requiring only push-button operation with minimal effort. Pressure is precisely set via a regulator valve and maintained constant automatically, eliminating the operator-dependent inconsistencies of manual pressing and ensuring identical pressing conditions from batch to batch.

2. How was the standard pressing pressure of 0.414 MPa determined? Why is it adjustable?
0.414 MPa is the standard pressing pressure specified in QB/T 3703-1999 for laboratory sheet preparation. The full adjustable range of 0-0.9 MPa allows users to flexibly set different pressures based on specific pulp types, sheet grammages, or experimental designs for comparative studies and process optimization.

3. How many sheets can be pressed at one time?
The pressing platen measures 310×310×200 mm and can accommodate multiple wet sheets stacked together. The exact number depends on sheet dimensions and thickness. Multiple standard φ159 mm circular sheets (typically several to a dozen) can be pressed simultaneously; optimal stacking height should be determined based on dewatering effectiveness.

4. Does the unit include an air compressor? What are the air supply requirements?

A compatible air compressor is included as standard, making the unit ready to use out of the box without additional air source purchases. The compressor supplies compressed air at 0.5-0.9 MPa, meeting the normal operating requirements of the press. Simply connect the air line from the compressor to the press.

5. How do I adjust and set the pressing pressure?
Set the desired pressure by turning the regulator knob on the unit; the current working pressure is displayed in real time on the pressure gauge. Once set, the pneumatic system automatically maintains the constant pressure until the pressing cycle is complete, requiring no continuous manual attention.

6. Can pressed sheets be directly transferred to the dryer?
Yes. After pressing, the sheets have had most free water removed and the fiber structure is more compact. Remove the pressed sheets and transfer them directly to a flat sheet dryer or curved rapid sheet dryer to complete the full standard handsheet preparation process.

After-Sales Service / 售后服务
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Pneumatic Sheet Press comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and handsheet preparation process consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.