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Type CQ-2

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Type CQ-2 
 
Type
Dimension
D
H
R
h
α
e
CQ0810-2
8.0
10.0
4.0
4.0
7o30'
1.0
CQ1012-2
10.0
12.0
5.0
5.5
CQ1014-2
14.0
7.5
CQ1118-2
11.0
18.0
3.6
12.0
29o
CQ1120-2
20.0
5.0
14.0
15o38'
CQ1216-2
12.0
16.0
6.0
10.0
7o30'

Technical Requirements

Deviation of the Diameter (D), Height (H) of the mining bits should comply with the following stipulations:

Unit: mm
GradeDH
Basic SizeAllowable DeviationBasic SizeAllowable Deviation
Ordinary Level≤13.0+0.35
+0.10
≤10±0.25
>10.0~18.0±0.30
>13.0~22.0+0.45
+0.10
>18.0~25.0±0.35
>22.0+0.55
+0.10
>25.0±0.45
Higher Level≤18.0+0.25
+0.05/td>
≤11.0±0.15
>11.0~18.0±0.20
>18.0~25.0+0.30
+0.05
>18.0~25.0±0.25
>25.0±0.30

The allowed deviation of radius of Rough unit of the mining bits is between 0~0.5mm;
The allowable deviation of e: +0.2~+0.4mm

The allowed deviation of the unit of mining bits.

Unit: mm
AngleAllowable Deviation
≤5o±1o
>5o~15o±2o
>15o±3o

 

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