The raw material of turning polyurethane seal is the blank barrel material which is poured from the imported liquid raw material after heating and melting, and then transmitted to the special turning CNC seal processing equipment for processing through software programming various seal data
1、 Molded hydraulic seals: Molded hydraulic seals are made by melting filled rubber or polyurethane after heating with abrasive tools, and have the following shortcomings:
① The compactness is poor, and the product is prone to defects due to insufficient filling in the open mold;
② According to the temperature environment, material batch, product size and other shrinkage rates of the material will deviate from the theoretical data, which is easy to cause large tolerance of the finished product and the size is not easy to control.
④ Different sections and sizes require special molds, which is complicated in process and long in delivery period.

2、Mouldless turning seal: The barrel material (raw material) of dieless turning hydraulic seal is extruded by high pressure after heating and melting

Raw materials, formula and process, regardless of sealing performance, wear resistance, fatigue resistance and other properties, are close to European products, while the price is close to that of domestic counterparts.Highly competitive cost performance, precision turning based on your size data is your ideal choice
The dieless turning seal has the following characteristics:

1、 Without standard and non-standard restrictions, any section shape can be turned, such as: various sizes of dust rings, U-rings for shafts, U-rings for holes, special-shaped parts, etc.

2、 The diameter range from 4mm to 2.5m can be processed without mold opening.
3、 The imported special machine tools and tools for sealing parts are processed with high precision and can meet the requirements of equipment under different working conditions.
4、Fast delivery. The urgent goods shall be delivered on the same day, the specifications within 1 meter shall be delivered in 7 days, and the specifications between 1 meter and 2.5 meters shall be delivered in 15 days. It greatly shortened the supply cycle and equipment downtime.
5、Produced with high-quality imported raw materials, the product has the characteristics of hydrolysis resistance, oil resistance, high tear strength and excellent physical properties