Uses and Features of the Press Machine

2026-07-13 16:02:59

Uses and Features of Sagger Hydraulic Press

1. Main Uses

Production of lithium‑battery saggers

It compresses alumina‑based, mullite‑based and silicon‑carbide raw materials into high‑density saggers used for sintering cathode materials (NCM, LFP). Uniform compactness avoids deformation or cracking during high‑temperature firing.

Refractory sagger forming

Makes corundum‑mullite saggers, graphite saggers and kiln furniture for ceramic, glass and powder‑metallurgy industries.

Other compression applications

Apart from saggers, this hydraulic press can compact refractory bricks, ceramic blanks, carbon products and inorganic powder materials.

Custom‑molding service

By changing molds, the equipment can produce rectangular, square and irregular‑shaped saggers in different sizes according to customer requirements.

2. Core Features

(1) Mechanical structure

Most mainstream machines adopt a four‑column four‑beam structure. The thickened columns and forged beams have high rigidity, resisting deflection under heavy‑tonnage pressure. Bidirectional‑press versions use a floating‑mold design: upper cylinder presses down and the lower cylinder pushes up simultaneously. Density of finished saggers is consistent from top to bottom, solving the problem of uneven density caused by single‑side pressing.

The worktable is thick‑plate processed, with high flatness to ensure consistent blank thickness.

(2) Hydraulic system

Servo‑hydraulic configuration (upgraded version): Servo motor matches a high‑precision pump. It adjusts pressure and flow in real‑time according to different pressing stages. Compared with ordinary fixed‑frequency hydraulic presses, power consumption is reduced by 25‑35%, noise is lower.

Multi‑stage pressure setup: Divided into fast‑down stage, pre‑pressing stage, holding‑pressure stage and slow‑pressure‑relief stage. Holding‑time can be adjusted. Long‑time pressure holding effectively exhausts air inside powder blanks so that saggers will not crack after sintering.

Imported hydraulic valves and sealing parts improve stability and reduce oil‑leakage faults. System working pressure is stable.

(3) Electric control system

PLC + human‑machine touch‑screen operation. Operators set tonnage, pressing speed, holding‑pressure time and stroke parameters on the screen. Parameter data can be saved for different sagger formulas.

Closed‑loop monitoring for pressure and position. Real‑time data is displayed; alarms pop‑up for overload, over‑travel or oil‑pressure abnormality to protect the whole machine.

Working‑mode options: automatic continuous‑cycle mode for mass‑production and manual‑jog mode for mold‑installation and trial‑production.

(4) Practical production‑oriented advantages

High‑forming consistency: Each pressed‑out sagger has the same weight and density, which improves the yield rate after high‑temperature firing.

Wide tonnage range: From small‑tonnage 100‑ton trial‑press machines to 2000‑ton large‑size‑sagger dedicated presses are available, including non‑standard customized‑tonnage machines.

Easy maintenance: Standardized spare‑part design facilitates later‑period replacement and daily maintenance.

Safety protection: Safety‑grating and emergency‑stop buttons are equipped around the working area to prevent accidental injury for workers.