Audited Supplier
This Metallic mould be used for casting grinding media steel ball by hand. Can be make the gridning ball size Φ50 - Φ150 mm, and can make grinding cylpebs for Φ30*35 - Φ60*70 mm. The grinding media alloy material can be 1% Cr - 28% Cr, mould useful life is 6-18 months.
| #1 Alloy Chemical Composition: | ||||||||||
| Cast grinding ball Name | Item | Chemical Composition ( % ) | ||||||||
| C | Si | Mn | Cr | Mo | Cu | Ni | P | S | ||
| Top Chrome | ZQCr26 | 2.1-3.3 | ≤1.2 | 0.2-1.5 | 23 - 30 | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.06 | ≤0.06 |
| Super Chrome | ZQCr20 | 2.1-3.5 | ≤1.2 | 0.2-1.5 | 18 - 23 | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.06 | ≤0.06 |
| High Chrome | ZQCr12 | 2.1-3.6 | ≤1.2 | 0.2-1.5 | 10 - 15 | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.06 | ≤0.06 |
| Middle Chrome | ZQCr 5 | 2.1-3.6 | ≤1.5 | 0.2-1.5 | 4.0-6.0 | ≤1.0 | ≤0.8 | - | ≤0.08 | ≤0.08 |
| Low Chrome | ZQCr 2 | 2.1-3.6 | ≤1.5 | 0.2-1.5 | 1.0-3.0 | ≤1.0 | ≤0.8 | - | ≤0.10 | ≤0.10 |
| CADI | ZQCADI | 3.2-3.8 | 2.0-3.0 | 0.5-3.5 | 0.2-1.5 | ≤1.0 | ≤1.0 | - | ≤0.05 | ≤0.03 |
| #2 Product Physical Technical: | ||||||
Cast grinding ball Name | Item | Physical Technical | ||||
| Surface Hardness | Breakage Rate | Impact fatigue Falling ball times | Impact Value ( J /cm2 ) | Micro- structure | ||
| Top Chrome | ZQCr26 | HRC ≥ 62 | ≤ 1.0 % | ≥ 15000 | ≥ 3.0 | M +C |
| Super Chrome | ZQCr20 | HRC ≥ 60 | ≤ 1.0 % | ≥ 15000 | ≥ 3.0 | M +C |
| High Chrome | ZQCr12 | HRC ≥ 58 | ≤ 1.0 % | ≥ 15000 | ≥ 3.0 | M +C |
| Middle Chrome | ZQCr 5 | HRC ≥ 47 | ≤ 2.0 % | ≥ 8000 | ≥ 2.0 | P +C |
| Low Chrome | ZQCr 2 | HRC ≥ 45 | ≤ 2.0 % | ≥ 8000 | ≥1.6 | P +C |
| CADI | ZQCADI | HRC ≥ 50 | ≤ 1.0 % | ≥ 15000 | 8-25 | M+AF+ GJS |
| Remark: M= Martensite ; C= Carbide ; P= Pearlite ; AF= Acicular Ferrite ; GJS= spheroidal graphite | ||||||
| #3 Existing Product Size : | ||||||
| Product Size Φ(mm) | Φ40 / Φ50 /Φ60 | Φ70 / Φ80 | Φ90 / Φ100 | Φ110 / Φ120 | Φ125/Φ130/ Φ140 /Φ150/Φ160 | |
| Diameter Tolerance | + 1.5 mm - 1.0 mm | + 2.0 mm - 1.0 mm | + 2.5 mm - 1.0 mm | + 3.0 mm - 1.0 mm | + 3.5 mm - 2.0 mm | |
| Remark: NGZR can customized any cast grinding ball mould diameter size from Φ40 to Φ150 mm; | ||||||
| #4 Product Weigth : | ||||||||
| Size (mm) | Φ20 | Φ25 | Φ30 | Φ40 | Φ50 | Φ60 | Φ70 | Φ80 |
| Weight (kg/pcs) | 0.034 | 0.063 | 0.11 | 0.26 | 0.51 | 0.86 | 1.37 | 2.05 |
| Q'ty (pcs) per mt | 31506 | 15873 | 9091 | 3891 | 2000 | 1153 | 729 | 487 |
| Size (mm) | Φ90 | Φ100 | Φ110 | Φ120 | Φ125 | Φ130 | Φ160 | |
| Weight (kg/pcs) | 2.9 | 4.0 | 5.3 | 6.8 | 7.75 | 8.74 | 13.5 | |
| Q'ty (pcs) per mt | 345 | 250 | 188 | 147 | 129 | 114 | 74 | |
Package:
1. Wooden Box
NGZR (Full name: Anhui Ningguo Zhongrui Wear-resisting material Co., Ltd) was a professional manufacturer of casting grinding media and wear-resistant alloy casting part. NGZR's founder start casting grinding media business since 1987, and NGZR was established in 2007, It have more than 30 years experience for wear-resisting casting part and casting grinding ball.
NGZR's foundry was located at Ningguo City (national) industrial park, it is 350km away from Shanghai Sea port, and 150km away only from Nanjing Lukou international Airport. Foundry covers an area of 1.8 Hectare, has workshop area more than 10,000 SQM. Foundry annual production capacity was 30,000 - 50,000 MT.
NGZR's main products as below:
#1 Casting grinding media (grinding ball & grinding cylpebs) for Ball Mill:
#2 Wear-resistant casting part for Mining Machinery :
Casting liner& Hammer & Jaw plates & Casting bucket tooth
#3 Casting Mould :
A# Casting metallic mould for grinding meida steel ball & cylpebs cast by hand;
B# Casting metallic mould for grinding meida steel ball & cylpebs automatic casting line;
C# other grinding media casting mould and machinery ;
NGZR foundry have 4 different casting workshops with different casting production line, details as below :
#1 Full Automatic Metalic mould coating sand casting production line
#2 Resin-sand Shell mould vertical casting production line
#3 Resin-sand Wooden mould manual casting production line
#4 Lost foam process full Automatic precision casting line
NGZR not only has a large production capacity and advanced production equipment, but also is equipped with advanced design & testing equipment, such as Auto-CAD drawing software, CNC model cutting machine, direct reading spectrometer, hardness tester, far infrared thermometer, etc., which can help accurately control models size and alloy composition, realize temperature controlled melting, constant temperature pouring, automatic temperature controlled quenching/annealing and other production processes, ensuring the stable and reliable quality of grinding balls & casting parts.
NGZR have more than 30 years of experience in the design/ produce and after-sales service of grinding media and wear-resistant casting parts. we have rich experience in cooperating with enterprises in different industries such as iron ore/non-ferrous metal mines/cement industry/sand & aggregate industry/Concrete materials and coal-fired power plants, and provide solutions for end customers. NGZR can do OEM & ODM with customer, our products are not only hot sale in China domestic market, also been exported to oversea countries such as the Philippines/ Malaysia/ Indonesia/ Ghana/ Zimbabwe, etc.
NGZR is committed to providing one-shop solutions for the grinding media and wear-resistant casting parts used in customers' existing equipment, reducing unit production costs & improving production efficiency for customers,, ensuring and extending the maintenance cycle and service life of customers' equipment, creating value for customers, to take NGZR own development.
NGZR foundry can be followed customer's requirement to readjust the Chemical Composition of Alloy material such as: Chromium (10-28%) / Carbon / Silicon / Manganese / Copper / Nickel / Molybdenum, that can help grinding media match different mineral characteristics as high hardness / High PH degree of acid or alkali and high temperature grinding etc.
#2 Customized grinding media shape;
NGZR can develop and make different shape of grinding media as: Grinding ball (Sphere) / Grinding cylpebs ( Cylinder) / Grinding egg ( Ellipsoid) / Polyhedron Shape and other special customized shape. Different shape grinding media will have better grinding effect with different grinding conditions
#3 Higher hardness;
Casting high Chromium grinding ball with special heat treatment processing (Oil quench & annealing), will have higher hardness. The minimum hardness is HRC 58 for large casting ball diameter size with lower breakage rate, and maximum hardness can be reach to HRC 65, can be used to highest hardness ore.
#4 Lower wear-rate;
Because the high chromium grind ball have higher hardness, and hardness difference of ball surface and core less than HRC 2, and alloy material be able to withstand high temperature / high acid & alkali, its wear rate will much less than forged ball /lower chrome steel ball. Ball mill ( SAG mill ) grinding for For Iron ore/ Copper ore /Gold ore, high chrome grinding ball consumption will be 30- 80 g for each ton ore.
#5 lower breakage & out-of-roundness rate;
Depend on controlling raw material quality / advanced casting production equipment & special heat-treatment processing, The high chromium casting grinding ball product of NGZR have good Physical Property, large size casting ball breakage & Out-of-roundness rate will less than 1%; Small size casting ball breakage & Out-of-roundness rate will less than 0.5%
#1 How to require a quotation ?
Please send details of your requirement to us ,we will send quotation sheet to you within 3 working days by E-mail.
#2 How to require a free sample ?
Please send your sample requirement to us,we will check and confirmed to you within 3 days. Sample quantity less than 1 stes can be free, but sample express & tax fee should be by Freight Collect.
#3 What is this product MOQ ?
The MOQ is 1 sets;
#4 What is your order Lead-time ?
Order Quantity less than 100 sets, the lead-time is 20-30 days after order deposit;
Order Quantity more than 100 mt, the lead-time will be 45-60 days;
#5 What is your export product package ? How to transport ?
Our product export package is Wooden Box. For oversea customer, we will transport by sea with container , or by Air.
#6 What is your payment term ?
With different price & quantity of contract, We accept different payment term as below:
a. 30% T/T in advance, balance T/T before shipment;
b. 20% T/T in advance, balance T/T within 30-60 days after B/L date ( O/A 30-60 days);
c. 10% T/T in advance, balance T/T within 60-120 days after B/L date ( O/A 60-120 days);
#7 What is your price term ? How to delivery cargoes?
We can do price term as below:
#1 EXW factory, including VAT tax, Loading cargoes in our factory ( Ningguo city, Anhui );
#2 FOB Shanghai / Ningbo Port, Container loading cargoes in our factory;
#3 CIF Port of delivery, Shipping with container by sea;
#4 DAP place of delivery; Transport with container by sea & by train;
