EJ industry is a professional manufacturer who specializes
in production for
low pressure cast iron and ductile iron valves.
The company has a total
investment of 7 million US Dollars and it is covering an
area of 44000 square meters. The area of building is 35000 square
meters. The company has a modernized production workshop and
production equipments, it's productivity is 12000 ton of valves per year.
The company has 300
stuff, among whom over 90 are technical college or above school record, 40 are intermediate above technical title stuff, and 120 are
senior technical staff in the company.
The company has the independent
research and development ability, and it also can carry on the
design and the production according to customer's request. The
company has over years experience in exporting valves. The main products
are BS 5163/ DIN3352 F4/F5 / AWWA C509 and socket end resilient gate
valve, BS750 Hydrant, BS5153(L/W) brass seal swing check valve,
BS5163 brass seat gate valve, BS5152 brass seal cut-off valve,
Y-strainer, etc. Our products have been exported to Europe, American, Middle East,
Africa and Southeast Asia.
The company has been
certified with PED/CE, ISO9001:2008, WRAS and SIL.
With remarkable quality,
competitive price and complete guarantees, the company win more and
more reputations in both domestic & international markets.
Welcome your customers from
worldwide to visit our factory and establish business with us!
Water Working Valves, Gate,Globe and Check Valves,Butterfly Valves Professional Flow Control Expert - Suzhou EJ Industry Co.,Ltd , https://www.ej-industry.com
ZHONGYANG SCREW is one of the most history and famous screw barrel brand in China. We have professional and experienced teams in every department of our company. We think professional, quality and service is the basic of business. If you want reliable and helpful screw barrel, we will be your best choice! Please kindly find our detailed information as following:
Specification:
45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188
The above are standard specifications, we can customize according to customers' requirements.
The compression ratio of screws can be designed according to different products and ingredients.
Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
Focus on quality and service.
Experienced manufacturer, we will be the best choice.
Workshop Display:
Products Application:
1)General Plastics, PVC
2)Material compounds CACO3, glass fiber, recycle materials, stabilizer
3)ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU etc
4)Scrap and waste plastic and PVC recycling
5)Modified engineering plastics
Terms and Conditions:
Means of transport: Ocean, Air, Express
Production time: About 20-30 days after we receive the advanced payment
Production Process:
Receiving orders - Designing & Drawing confirmation - Blanking Thermal refining - Heat treatment - Rough Turning - Polishing - Drilling for barrel - Semi Finishing Machining - Bimetallic welding - Centrifugal casting for barrel - Polishing - Nitriding treatment(120 hours) or High frequency quenching - Hard-chrome plating - O. D. Grinding - Honing for barrel - Alignment - Polishing - Inspecting - Packing & Shipping
ZY SCREW's advantage:
First-class designing and researching team;
High quality and durable products of screw barrel;
Most professional sales who can serve for you timely;
Best customer service especially after-sale service;
Powerful company's strength support long-term cooperation.
Welcome to contact us, Camille will reply you timely!
