Igwe eji ejikọta spiral akpaaka PBS 420
1. Maka nnukwu mmepụta nke akwụkwọ gburugburu
2. Na G ụdị azụ nko mkpuchi mkpuchi na L ụdị mkpọchi nhọrọ
3. Kwesịrị ekwesị ụfọdụ akwụkwọ ndetu (ihe mkpuchi mkpuchi ka ukwuu karịa akwụkwọ ime)
4. Max nwere ike iji maka 20mm ọkpụrụkpụ akwụkwọ ndetu
1) oghere Punching akụkụ
2) Akụkụ Nhazi oghere
3) Spiral akpụ, na-ekekọta na Scissor mkpọchi ọnwụ akụkụ
4) dechara akwụkwọ na-anakọta akụkụ
G ụdị (spiral dayameta 14mm -25mm), gburugburu 14mm -25mm, ọ nwere ike họrọ G ụdị mkpọchi, ma nke ụdị G ụdị dabere na oghere pitch, okirikiri dayameta na waya dayameta.
Ụdị L (obosara 8mm - 25mm)
| Obere okirikiri (mm) | Dayameta waya (mm) | Oghere (mm) | Ọkpụrụkpụ akwụkwọ (mm) |
| 8 | 0.7-0.8 | Φ3.0 | 5 |
| 10 | 0.7-0.8 | Φ3.0 | 7 |
| 12 | 0.8-0.9 | Φ3.5 | 9 |
| 14 | 1.0-1.1 | Φ4.0 | 11 |
| 16 | 1.0-1.1 | Φ4.0 | 12 |
| 18 | 1.0-1.1 | Φ4.0 | 14 |
| 20 | 1.1-1.2 | Φ4.0 | 15 |
| 22 | 1.1-1.2 | Φ5.0 | 17 |
| 25 | 1.1-1.2 | Φ5.0 | 20 |
| ọsọ | Ihe ruru akwụkwọ 1300 kwa elekere |
| Nrụgide ikuku | 5-8 n'arọ |
| Spiral dayameta | 8mm-25mm |
| Ogologo njide kacha | 420mm |
| Min obosara njide | 70mm |
| G ụdị azụ nko mkpa nso | 14mm-25mm |
| L ụdị nkịtị nko mkpa nso | 8mm - 25mm |
| Spiral oghere pitch nhọrọ oke | 5,6,6.35,8,8.47 (mm) |
