Mfululizo wa J21 general open back press na kitanda kisichobadilika
Inachukua crankshaft iliyowekwa kwa usawa.
Klachi ya dhamana iliyozungushwa rigid.
Marekebisho ya urefu wa kufunga kwa mikono na onyesho la mizani.
Aina iliyo na "A" iliyo na kifaa cha kusimamisha dharura, ambayo inaweza kufanya slaidi kusimama kwa 0 °～Eneo la 135° na lina kinga ya pazia nyepesi pia.
Aina iliyo na "D" inachukua muundo wa dhamana zinazozungushwa mbili ili kushinda upigaji upya kwa ufanisi.
JC21-160 iliyo na clutch ya nyumatiki ili kusimamisha slaidi katika nafasi yoyote.
MAELEZO:
| MFANO | J21-63A | JD21-63A | J21-80A | JD21-80A | JD21-100A | JD21-125A | JC21-160 |
| Uwezo | kN | 630 | 630 | 800 | 800 | 1000 | 1250 | 1600 |
| Nguvu ya Majina | mm | 8 | 8 | 9 | 9 | 10 | 10 | 6 |
| Kiharusi cha Slaidi | mm | 120 | 120 | 130 | 130 | 140 | 140 | 160 |
| SPM | dakika-1 | 50 | 50 | 45 | 45 | 38 | 38 | 40 |
| Max.Urefu wa Kufa | mm | 300 | 300 | 350 | 320 | 320 | 320 | 350 |
| Kufa Urefu Marekebisho | mm | 80 | 80 | 100 | 100 | 100 | 100 | 100 |
| Kati ya Kituo cha Slaidi na Fremu | mm | 300 | 300 | 300 | 300 | 380 | 380 | 380 |
| Bolster (FB×LR) | mm | 570×760 | 570×760 | 580×860 | 580×860 | 710×1100 | 720×1200 | 740×1300 |
| Ufunguzi wa Bolster (Up Hole Dia.×Dpth×Low Hole Dia.) | mm | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ200×45 ×Φ180 | Φ260×50 ×Φ220 | Φ260×50 ×Φ220 | Φ300×50 ×Φ220 |
| Unene wa Kuimarisha | mm | 90 | 90 | 100 | 100 | 120 | 120 | 150 |
| Ufunguzi wa Bolster (Dia.×FB×LR) | mm | Inatuma Φ280×220 ×320 | Φ280×220 ×320 | Inatuma Φ280×220 × 380 | Φ280×220 × 380 | Inatuma Φ320×250×420 | Inatuma Φ320×250 ×420 | Φ470 |
| Chuma 220×250 | | Chuma 220×260 | | Chuma 260×290 | Chuma 260×290 |
| Eneo la Slaidi (FB×LR) | mm | 280×320 | 280×320 | 280×380 | 280×380 | 420×560 | 420×560 | 580×770 |
| Shimo la Shank (Dia.×Dpth) | mm | Φ50×80 | Φ50×80 | Φ60×75 | Φ60×75 | Φ60×80 | Φ60×80 | Φ65×85 |
| Kati ya Safu | mm | Chuma 470 | 320 | Chuma 515 | 410 | Chuma 630 | Chuma 620 | 730 |
| Inatuma 320 | Inatuma 410 | Inatuma 580 | Inatuma 580 |
| Nguvu ya Magari | kW | 5.5 | 5.5 | 7.5 | 7.5 | 7.5 | 11 | 15 |
| Ukubwa wa Muhtasari (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 |
