Series J21S machinae perforatoriae, preli potentis gutturis profundi, proprietates:
Prelum generale gutturis profundi seriei J21S
Augmentum profunditatis gutturis et areae operandi.
Arbore principali horizontaliter posito adoptat.
Copula rigida rotata.
Adaptatio altitudinis clauditurae manualis cum ostensione scalae.
Typus cum "A" instructus instrumento sistendi in casu necessitatis, quod currere potest ad 0° sistere.~Area 135° et instructa cum velamine lucis protectore etiam.
SPECIFICATIONES:
| MODELLUM | J21S-6.3 | J21S-10 | J21S-16 | J21S-25A | J21S-40A | |
| Capacitas | kN | 63 | centum | CLX | 250 | quadringenti |
| Vis Nominalis | mm | 2 | 2 | 2 | 2.5 | 4 |
| Ictus Labendi | mm | 35 | 60 | 70 | 80 | CXX |
| SPM | min-1 | CLXX | 145 | 125 | 60 | 55 |
| Altitudo Maxima Matricis | mm | 110 | 130 | CLXX | CLXXX | 220 |
| Adaptatio Altitudinis Matricis | mm | 30 | 35 | 45 | 70 | 80 |
| Inter Centrum Diapositivae et Quadrum | mm | DCC | DCC | DCC | DCC | DCC |
| Bolster (FB×LR) | mm | 200×310 | 240×360 | 320×480 | 400×600 | 480×700 |
| Apertura Columnae (Diametro Foraminis Superioris × Profunditas × Diametro Foraminis Inferiori) | mm | Φ60 | Φ120×20×Φ100 | Φ100 | Φ120 | Φ220×25×Φ180 |
| Crassitudo fulcri | mm | 40 | 50 | 60 | 70 | 80 |
| Apertura Sustentationis (Dia. × FB × LR) | mm | Φ140×110×160 | Φ130×90×180 | Φ210×160×240 | 200×200 | 200×240 |
| Area Labendi (FB×LR) | mm | 120×140 | 150×170 | 180×200 | 210×250 | 270×320 |
| Foramen Caniculi (Dia. × Profunditas) | mm | Φ30×55 | Φ30×55 | Φ40×60 | Φ40×70 | Φ50×70 |
| Inter Columnas | mm | CLXII | CLXXXII | 220 | 350 | 390 |
| Potentia Motoris | kW | 0.75 | 1.1 | 1.5 | 2.2 | 4 |
| Magnitudo Lineamentalis (FB×LR×H) | mm | 1540×700×1525 | 1620×730×1800 | 1680×840×1880 | 1790×990×2288 | 1965×1180×2295 |