HOT SALE vacuum molding proess

1. ISO9001:2000 2. Competitive price 3. High precision 4. Easy operation 5. Saving energy

Company introduction

Double Star Luohe Zhongyuan Machinery Co., Ltd is the backbone of Double Star Group in foundry machinery, and one of six key enterprises of original ministry of machinery industry and the largest machinery production base in Henan province of China.

Our company is state-owned enterprise, the state has 60% stock right. With more than 40 years of manufacture and practice experience in foundry machinery, we mainly product foundry sand reclamation complete plant, Vacuum process moulding plant, sodium silicate sand reclamation complete plant, Lost foam(EPC process) production line, dust cleaning equipment.

Our company in 1999 got through ISO9000 authentication. Our company subordinates five branch factories and one research institute. It is the second measurement unit in China, and the only enterprise that obtained the pressure vessel manufacture license in foundry machinery industry. We developed the first Vacuum process moulding plant to manufacture axle castings in China. Our three-claw clamping positioning device, self-hardening double sand three mixing continuous mixer, multilevel efficient reclamation winnower, roller reversal type strength scrub reclaimer, hydraulic clamping turn-over machine, winnowing and magnetic separation one machine, and low speed continuous sand mixing device have obtained national patent in China. We have the comprehensive ability of completely independent design, development, manufacture and commissioning. Our equipment have been sold throughout the country and exported to Asia, Europe, South America and other regions, whose technical level has reached the international advanced level.

Vacuum sand molding processing line

Vacuum process molding line is an emerging molding process which invented and developed successfully from Japan in the 1970s. It adopts unit sand as molding sand, using plastic film coated forming in the mould with air vent and air extractor after heating, sealed box, vacuating the molding, causing pressure difference between molding inner and outer makes dry sand compact to form needed mold cavity.

The basic equipment of vacuum process is: sand box mould with vacuum, vacuum pumping system, plastic film heating, molding and cutting off, vibrating table, sand processing equipment and so on.

Our company has world leading vacuum process molding technology. We can design different vacuum process molding equipment and corresponding sand processing equipment.

Vacuum process molding technology has developed well during the recent years by the higher degree of automation, higher quality of casting, high precision, no pollution, saving energy, improving working environment and so on.

Vacuum process molding casting surface quality is good, less casting defect, easy stripping, high precision casting dimension. Molding sand doesn’t use binder, totally recycling, reducing the mineral cost, so it is applied in more and more fields.

 Characterstic :

1. the quantity of the surface is good 

2. the cast have less noise 

3. easy to stripping 

4. high precision

5. the cast sand is not bonded , and the sand could be almost recycled 100% 

6. reduce the cost of each cast 

7.we can make 3000t/year--80000t/year

Main stand-alone equipment

Molding process: : Opening film, covering film, spraying coating, pouring riser, adding sand box, shakeout adding sand, covering back film, vacuum pump, starting pattern, sand processing, vibrating screeing conveying, elevator, winnowing lowering temperature, magnetic separator, boiling cooling, sand quantitive addition to sand box.

International cooperation

High quality industry and internationalization is the strategic thought of Double star. Double star tries best to integrate the advanced technology,excellent talents and advanced concept  into the company development,which give support to the pace,strategy and development of Double star's internalization and make our business partners using most suitable Double star's products.

HOT SALE vacuum molding proess