Machining part;
SS/CS/Alloy steel/Heat-resistant steel;
Certification:ISO 9001:2008;
Polishing;
Making to drawing.
1.Product name: Machining part;
2.Material:Stainless steels/heat-resistant steel/alloy steels/carbon steels;
3.Technology:silica sol and sodium silicate lost-wax processes;
4.Certification:ISO 9001:2008;
5.Surface roughness:80 to 120 RMS are average;
6.Standard Linear Tolerance(mm)
Dimensions | Normal | Premium |
Up to 10 | ±0.12 | ±0.10 |
10 to 15 | ±0.20 | ±0.13 |
15 to 20 | ±0.25 | ±0.15 |
20 to 30 | ±0.30 | ±0.20 |
30 to 50 | ±0.40 | ±0.25 |
50 to 75 | ±0.50 | ±0.35 |
75 to 100 | ±0.65 | ±0.45 |
100 to 125 | ±0.80 | ±0.60 |
125 to 150 | ±1.00 | ±0.70 |
150 to 175 | ±1.20 | ±0.80 |
175 to 200 | ±1.50 | ±0.90 |
200 to 250 | ±1.80 | ±1.10 |
over 250 | ±0.80% | ±0.50% |
7.Flatness, Strengteness and Roundness
Section Thickness | Possible Thickness Section Sink per Face of Casting | |
Normal | Premium | |
Up to 25 | 0.20 | 0.10 |
25 to 50 | 0.40 | 0.20 |
50 to 100 | 0.60 | 0.30 |
100 to 150 | 0.80 | 0.40 |
8.Size and Weight Range
Items | Size | Premium |
Outline Dimention | 1000×620×380 | up to 100 |
Weight(kgs) | 0.001-60 | 0.10 to 1.50 |
Min. Wall Thickness | 0.50 | 5 to 10 |
9.Hole Length
Making a good hole in a casting is dependent on the integrity of the shell. The ratio of holediameter to length is important in determining what can be offered. Blind holes must have aradius at the top and the bottom of the hole to insure that a strong core is built for castingpurposes and to insure the best possible casting
Hole Type | Size Range | Length to Dia.Ratio |
Thru | 2 to 3 | ≤2 |
| 4 to 7 | ≤5 |
| ≥8 | ≤10 |
Blind | 2 to 3 | ≤1 |
| 4 to 7 | ≤2.5 |
| ≥8 | ≤3.5 |
10.We can accept OEM. We can manufacture according to your drawing.