FAQ

  • Q: Where is your foundry and what is the nearest logistic port/hub to site?
  • A: Our foundry is located in Hezhou,Guangxi, China, 400kms away from Huangpu port, Guangzhou or 450kms away from Yantian, Shenzhen.
  • Q: When was the company formed?
  • A: Our Company was founded in 1985.
  • Q: What's the company's property?
  • A: MnSteels, LLC is a private company.
  • Q: What is your employee distribution?
  • A: We employ about 120 people. 20 in administration, 20 in engineering and QA, 80 in production.
  • Q: What are your main products?
  • A: Our main products are manganese crusher plates including cone crusher liners and jaw crusher liners. As well as other manganese steel parts, we also manufacture high chrome cast iron and other alloys.
  • Q: The size of your premises?
  • A: Our foundry covers an area of over 40,000 square meters with two workshops of 7,000 square meters.
  • Q: Does the company have the export license?
  • A: Yes.
  • Q: Please describe design and mfg. standard used (GB, ISO, etc.)
  • A: We manufacture under the guidance of GB/T 5680-2010, as well as ISO, DIN, ASTM standards.
  • Q: What management system do you use?
  • A: We are certified for ISO9001:2008
  • Q: Are you able to response customers quickly?
  • A: Yes, all stuff are requested to response customer communications within 24 hours.
  • Q: Do you have ERP or equivalent system used in your company?
  • A: No, but we have our own Process Management System in place.
  • Q: What is the typical inventory levels held in factory for customers?
  • A: We keep about 800 tons of products for our customers in stock at any time.
  • Q: What is the designed capacity of your foundry?
  • A: We are able to produce 8,000 tons of castings a year at full capacity.
  • Q: At What Capacity Level are you currently operating?
  • A: We are running at 5,000-6,000 tons a year at the moment.
  • Q: What's the lead time of order to EXW for the 1st shipment?
  • A: For new items, the lead time is 45 days. For existing products, first shipment can be completed in 30 days.
  • Q: Do you have an independent department for R&D?
  • A: No, our R&D team works closely with the manufacture and QA.
  • Q: Do you have an assistance software or test facilities for new products designing and testing?
  • A: We use CAE program to run simulations. We have all necessary equipment & tools to perform tests needed.
  • Q: How many people fulltime work for QA department?
  • A: We have a QA team of 8 people working on site. In addition, a small independent QA team with 4 people works as third party QA, their job is to exam the products before they are dispatched.
  • Q: How long are samples of each lots stored?
  • A: We keep our samples of 3 years.
  • Q: What's the frequency of maintenance and regulation for test equipment?
  • A: Government policies require us to have our equipment tested once a year. Our own policy requires all to be tested twice a year, and some equipments with quarterly calibration.
  • Q: What types of furnace do you use and what are their capacities?
  • A: We use 2 5ton induction furnaces, maximum melt is 8 tons. We are expecting to increase the melt capacity to 15tons by 2015.
  • Q: What is your melting temperature?
  • A: 1480 degrees centigrade
  • Q: What is your pouring temperature?
  • A: We use bottom pour ladle, the temperature is 1420 degrees centigrade when pouring the first product. Pouring temperature for the rest products from the same ladle is lower than 1420 degrees centigrade.
  • Q: At what temperature is the casting when it enters the heat treatment oven?
  • A:
    Room temperature
    – All castings go through a cooling phase which takes from 48 hours to 120 hours depends on the thickness of the castings. For example, our C200 plates are about 300mm thick, they have to cool down for at least 100 hours.
    – Each casting has a process sheet which lists the related requirements, including cooling time.
  • Q: What is the temperature of the heat treatment oven when the casting is put in?
  • A: Room temperature
  • Q: What is the largest casting you can pour?
  • A: The largest finished casting that we can produce is 6,000 KGs (13,000 lbs).
  • Q: What is the largest casting you can tool?
  • A: We have two 4 meter vertical lathes which can machine castings up to 4 meters in diameter. For jaw crusher wear parts, we can handle up to 4 x 2.5 m (13 x 8 ft).
  • Q: What is your heat treatment schedule?
  • A: Please see chart below.heat treatment schedule
  • Q: How do you repair casting flaws (cracks)?
  • A: Please see the chart below.repair casting flaws

Gallery

Characteristics of MnSteels Manganese parts

 In recent years, researchers and producers (including MnSteels) have made numerous attempts to improve performance of manganese steels for different applications by modifying conventional composition and applying different heat treatment techniques.


• It would be worth mentioning here that most of the field failures or poor performance of manganese steels of standard composition are not due to inherent short-comings of the choice of composition or heat treatment, but due to ignorance about the metallurgy of the steel and carelessness / casualness during manufacturing stage.
• MnSteels has been producing manganese steel for twenty years, experience indicates that, except in some special applications, standard manganese steel, if manufactured with necessary controls, gives better performance in most of the wear conditions, compared to costly variations.
With the increase demand of austenitic manganese steel castings all over the world, innumerable foundries, big or small, professional or armature, produce manganese steel castings today. As a result there has been a wide scatter in the performance of standard austenitic manganese steel castings. This is because, except a few, most of the foundries do not have knowledge of metallurgy of manganese steel and not aware of the strict controls required to produce good quality manganese steel castings. And when complaints start coming from the users or the performance is compared with the products of the few good foundries, most foundries, almost blindly, start trying different modifications of manganese steels with different costly alloys, instead of trying to improve the manufacturing process.
MnSteels has always been trying to produce "proper" manganese steel castings; quality control and process management play a very important role in our day to day tasks.
With the proper procedures applied, MnSteels castings carry the following benefits:
• Longer wear life
• Fast work-hardening properties
• Reliable change-out scheduling/ consistent service life
• Reduced downtime through less change-outs

Contact Us

MnSteels (China)

Yingbin Rd, Zhongshan,Hezhou,Guangxi,China

Sam Tian

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tel: +86-0774-8970280

Fax: +86-0774-8866717

-------------------------------------------------------------------------------------------

MnSteels, LLC (U.S.)

6101 Long Prairie Road, Suite 744, Flower Mound, TX 75028, USA

Tel: 469-521-7888

www.mnsteels.com

Solomon Kong

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Cell: 214-998-0000

-------------------------------------------------------------------------------------------

SITE TOUR

      Located in Guangxi, China, MnSteels crusher plates are being distributed to most places in China. MnSteels exports its products through Guangzhou port.

MnSteels foundrie

      GW owns 2 5 ton induction furnaces with the capacity of producing 10,000 tons of manganese crusher plates annually.

spectrometer

spectrometer

Chemical analyze equipments

Chemical analyze equipments

hardness tester

hardness tester

metallographic microscope

metallographic microscope

impact tester

impact tester

main furnaces

main furnaces

heat treatment furnaces

heat treatment furnaces

ladle heating

ladle heating

AFP-ME

AFP-ME

air compressor

air compressor

sand processing unit

sand processing unit

vertical lathes1

vertical lathes2

vertical lathes3

vertical lathes4

vertical lathes