Roadheader series
SPM D Series gear milling production includes ordinary asphalt series, modified asphalt, cement pavement series and cold regeneration series, raw material products using the most advanced production technology, best quality, with good wear resistance, impact toughness, long service life, high work efficiency.
- U47 (16mm~35mm)
- U135 (19mm~35mm)
Material: high-quality 42CrMo alloy steel for teeth;
wear-resistant layer: hard alloy metallurgical composite material; solder flux: imported copper-based solder and flux;
Surface hardness: alloy head > 92HRC;
wear-resistant layer > 61HRC (far exceeding 45~48 for ordinary picks);
pick head > 50HRC; tooth shank > 45HRC;
Impact toughness: alloy head > 2800J/cm2;
tooth body ≥ 59J/cm2 (national standard 49J/cm2);
Brazed seam shear strength: tooth body and alloy head ≥ 195MPa
| Model | Cutting Conditions | System | ||||||
|---|---|---|---|---|---|---|---|---|
| 16mm~35mm | Soft | Medium hard | Hard | Higher hard | Extremely hard | Wear layer | Spin | |
| U47 | U47-16 | • | • | |||||
| U47-19 | • | • | ||||||
| U47-22 | • | • | ||||||
| U47-25 | • | • | • | |||||
| U47-28 | • | • | • | |||||
| U47-30 | • | • | • | |||||
| Model | Cutting Conditions | System | ||||||
|---|---|---|---|---|---|---|---|---|
| 19mm~35mm | Soft | Medium hard | Hard | Higher hard | Extremely hard | Wear layer | Spin | |
| U135 | U135-19 | • | • | |||||
| U135-22 | • | • | ||||||
| U135-25 | • | • | • | |||||
| U135-30 | • | • | • | |||||
| U135-35 | • | • | • | |||||
| U135-35-80 | • | • | • | |||||