J21 raupapa whānui tuwhera hoki perehi ki te moenga mau
Ka tango whakapae i te crankshaft.
Ko te mamau here kua hurihia.
Whakaritenga teitei kati a-ringa me te whakaaturanga tauine.
Ko te momo me "A" he taputapu aukati ohorere, ka mutu te kiriata ki te 0°～135° te horahanga me te whakamarumaru arai marama hoki.
Ko te momo me te "D" e mau ana i te hanganga here takahuri rua kia pai ai te whakahoki mai o te whiu.
Ko JC21-160 he mea mau ki te mamau pneumatic kia mutu te kiriata i tetahi waahi.
WHAKAMAHI:
| TAUIRA | J21-63A | JD21-63A | J21-80A | JD21-80A | JD21-100A | JD21-125A | JC21-160 |
| Te kaha | kN | 630 | 630 | 800 | 800 | 1000 | 1250 | 1600 |
| Ko te Kaha ingoa | mm | 8 | 8 | 9 | 9 | 10 | 10 | 6 |
| Maana Kiriata | mm | 120 | 120 | 130 | 130 | 140 | 140 | 160 |
| SPM | min-1 | 50 | 50 | 45 | 45 | 38 | 38 | 40 |
| Max.Mate Teitei | mm | 300 | 300 | 350 | 320 | 320 | 320 | 350 |
| Te Whakaritenga Teitei Mate | mm | 80 | 80 | 100 | 100 | 100 | 100 | 100 |
| I waenganui i te Pokapū Kiriata me te Tāpare | mm | 300 | 300 | 300 | 300 | 380 | 380 | 380 |
| Whakanuia (FB×LR) | mm | 570×760 | 570×760 | 580×860 | 580×860 | 710×1100 | 720×1200 | 740×1300 |
| Whakatuwheratia te Whakatuwheratanga (Tae o te Poka Whakarunga. | mm | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ260×50 ×Φ220 | Φ260×50 ×Φ220 | Φ300×50 ×Φ220 |
| Ko te Matotoru Whakanui | mm | 90 | 90 | 100 | 100 | 120 | 120 | 150 |
| Te Whakatuwheratanga (Dia.×FB×LR) | mm | Makanga Φ280×220 ×320 | Φ280×220 ×320 | Makanga Φ280×220 ×380 | Φ280×220 ×380 | Makanga Φ320×250×420 | Makanga Φ320×250 ×420 | Φ470 |
| Te maitai 220×250 | | Te maitai 220×260 | | Te maitai 260×290 | Te maitai 260×290 |
| Horahanga Kiriata (FB×LR) | mm | 280×320 | 280×320 | 280×380 | 280×380 | 420×560 | 420×560 | 580×770 |
| Kohao Shank (Dia.×Dpth) | mm | Φ50×80 | Φ50×80 | Φ60×75 | Φ60×75 | Φ60×80 | Φ60×80 | Φ65×85 |
| I waenganui i nga Tirangi | mm | Te rino 470 | 320 | Te rino 515 | 410 | Te rino 630 | Te rino 620 | 730 |
| Maka 320 | Makanga 410 | Makanga 580 | Makanga 580 |
| Te Mana Motini | kW | 5.5 | 5.5 | 7.5 | 7.5 | 7.5 | 11 | 15 |
| Rahi Whakahuahua (FB×LR×H) | mm | 1550×1410 ×2610 | 1550×141 0×2610 | 1610×1470 ×2680 | 1925×1470 ×2675 | 1960×1335 ×2850 | 2060×1600 ×3000 | 2200×1550 ×3160 |
