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Spindle pin insulatorcan be manufactured, designed and tested in accordance with DIN standard or insulator specification.
The thread on the shank of spindle pin insulator, before galvanizing, commonly used with nuts. The minimum failing load of the spindle pin insulator shall be 0.7 kN (pilot pins only), 5 kN or 10 kN.
According DIN standards, pin insulator spindle main dimensions:
| Type | a | b | d1 | d2 | d3 | d4 | e | f | h | I | weight | Max failing load | Used for insulator pin, DIN 48004 | Nowadays, used model |
| SGZ 10/15 | 105 | 170 | 25 | - | 40 | 40 | 57 | 4 | 275 | 1.20 | 125 | St10,St15 | VHS 10/15A | |
| SGZ 20 | 105 | 205 | 28 | - | - | 45 | 43 | 62 | 4 | 310 | 1.57 | 145 | St20 | VHS 20A |
| SGZ 30 | 125 | 280 | 32 | - | - | 50 | 50 | 85 | 5 | 405 | 2.45 | 165 | St30 | VHS 30A |
| SGK 10/15 | 140 | 170 | 25 | 27 | 34 | 50 | 40 | 57 | 5 | 310 | 1.65 | 300 | St10,St15 | VHS 10/15B |
| SGK 20 | 140 | 205 | 28 | 30 | 38 | 60 | 43 | 62 | 6 | 345 | 2.10 | 365 | St20 | VHS 20B |
| SGK 30 | 145 | 280 | 32 | 34 | 44 | 70 | 50 | 85 | 7 | 425 | 3.60 | 420 | St30 | VHS 30B |
The features of spindle pin insulator
◆ Sturdy construction
◆ Accurate dimension
Spindle pin insulator can be divided into lead head spindle and steel head spindle made of galvanized steel or stainless steel with high mechanical strength.
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Orient Power is a pin insulator manufacturer of porcelain pin type insulator and composite pin insulators.