Product Description:
1) Material: Gray Iron, Ductile Iron.
2) Process: Green sand casting, resin sand casting.
3) Applied software for specification drawings: Pro/E, AutoCAD, Solidworks etc.
4) Facility: Electric furnace, cupola furnace, anneal furnace, sand mixing machine, shot blast chamber, various molding machine.
5) Precision machining: CNC, NC lathes, boring machines, milling machines, bench drilling machines, etc.
6) Surface Protection: oiled (rust-proof), electroplating, hot dip galvanizing, nickel or chrome plating, painting, powder coating.
7) Products' location: The special designed fittings, widely used in municipal and drainage system, power station, industrial equipment, vehicles, etc.
Our Inspection Equipment:
Direct-reading spectrograph,metallographic microscope,hardness tester,brinell hardness tester,thermometric indicator,universal testing machine,carbon and silicon analysis meter,magnetic powder flaw detector,digital ultrasonic flaw detector etc.
Our Service:
1.Your inquiry related to our products or prices will be replied in 12 hours.
2.Individual formula according to customers' special drawing requests.
3.Manufacturer with large capacity,ensures the fast production cycle after
confirming the order.
4.Protection of sales area and private information for all of our customers.
Quality Control:
We have a full set of quality control system to guarantee best product quality. Depending on the products, we can make different Item Testing Plan, Manufacturing procedure etc.
Raw material control
Chemistry spectrum analysis
Mechanical property
Metallographic analysis
Ultrasonic testing
Magnetic testing
Radiographic testing
Dimension inspection
Visual inspection
Penetrant testing
Leak testing
Hardness test
Micro-structure tester after heat treatment
Machining Ability
Our machining shop located in Qingdao using the latest CNC equipment to provide our customer with high quality products.
Horizontal and Vertical Machining Center
CNC lathe and normal lathe
CNC drilling and milling Center
Other assistant equipment
| Name |
Partsize (mm) |
Material |
Weight(kg) |
| Φ |
Φ1 |
Φ2 |
Φ3 |
a1 |
a2 |
b1 |
b2 |
b3 |
b4 |
h1 |
h2 |
h3 |
h4 |
r1 |
r2 |
r3 |
r4 |
Lightweight ductile iron manhole covers |
Φ500 |
Φ480 |
Φ532 |
Φ540 |
180 |
140 |
10 |
8 |
13 |
86 |
9 |
31 |
60 |
6 |
140 |
210 |
6 |
8 |
QT500-7 |
25 |
| Φ600 |
Φ580 |
Φ632 |
Φ640 |
210 |
170 |
12 |
8 |
13 |
105 |
9 |
31 |
65 |
6 |
170 |
240 |
6 |
8 |
QT500-7 |
34 |
| Φ700 |
Φ680 |
Φ732 |
Φ740 |
250 |
210 |
12 |
9 |
15 |
120 |
9 |
31 |
70 |
6 |
210 |
280 |
6 |
8 |
QT500-7 |
44 |
| Φ800 |
Φ780 |
Φ832 |
Φ840 |
280 |
240 |
12 |
9 |
15 |
138 |
9 |
31 |
75 |
6 |
240 |
310 |
6 |
8 |
QT500-7 |
55 |
Heavy weight ductile iron manhole covers |
Φ500 |
Φ480 |
Φ532 |
Φ540 |
180 |
140 |
12 |
9 |
15 |
86 |
9 |
31 |
75 |
6 |
140 |
210 |
6 |
8 |
QT500-7 |
28 |
| Φ600 |
Φ580 |
Φ632 |
Φ640 |
210 |
170 |
14 |
9 |
15 |
105 |
10 |
30 |
80 |
7 |
170 |
240 |
6 |
8 |
QT500-7 |
39 |
| Φ700 |
Φ680 |
Φ732 |
Φ740 |
250 |
210 |
14 |
10 |
16 |
120 |
11 |
29 |
80 |
8 |
210 |
280 |
6 |
8 |
QT500-7 |
53 |
| Φ800 |
Φ780 |
Φ832 |
Φ840 |
280 |
240 |
14 |
11 |
18 |
138 |
12 |
28 |
85 |
9 |
240 |
310 |
6 |
8 |
QT500-7 |
71 |
Light gray cast iron manhole cover |
Φ500 |
Φ480 |
Φ532 |
Φ540 |
180 |
140 |
10 |
11 |
17 |
86 |
10 |
30 |
80 |
7 |
140 |
210 |
5 |
7 |
HT200 |
31 |
| Φ600 |
Φ580 |
Φ632 |
Φ640 |
210 |
170 |
12 |
12 |
19 |
105 |
11 |
29 |
85 |
8 |
170 |
240 |
5 |
7 |
HT200 |
45 |
| Φ700 |
Φ680 |
Φ732 |
Φ740 |
250 |
210 |
12 |
12 |
19 |
120 |
12 |
28 |
90 |
9 |
210 |
280 |
5 |
7 |
HT200 |
59 |
| Φ800 |
Φ780 |
Φ832 |
Φ840 |
280 |
240 |
12 |
13 |
20 |
138 |
13 |
27 |
90 |
10 |
240 |
310 |
5 |
7 |
HT200 |
77 |
heavy gray cast iron manhole cover |
Φ500 |
Φ480 |
Φ532 |
Φ540 |
180 |
140 |
12 |
13 |
21 |
86 |
12 |
28 |
95 |
9 |
140 |
210 |
5 |
7 |
HT200 |
38 |
| Φ600 |
Φ580 |
Φ632 |
Φ640 |
210 |
170 |
14 |
14 |
22 |
105 |
13 |
27 |
100 |
10 |
170 |
240 |
5 |
7 |
HT200 |
54 |
Qingdao Chifine Machinery Co., Ltd is one famous company in China which specialized in various metal casting products with over 10 years experience located in Qingdao China. It covers a comprehensive range of forging, stamping, sand casting, investment casting, die casting and machining and was widely used in Agriculture machinery, Motor Vehicle, Architecture, Railway and Engineering
As a professional company, Chifine have four groups of experienced teams to be in charge of different work:
Project team-customer service
Engineering team-provide R&D and technical support
QC team-productive process control and incoming parts inspection
Warehouse team-warehouse management and logistic service
Audited Supplier 
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