# Central Machinery 20 Ton H-Frame Floor Shop Press vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press: specs and price compared

A sourced, side-by-side comparison of the Central Machinery 20 Ton H-Frame Floor Shop Press (Central Machinery (Harbor Freight)) and Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press (Black Widow) among hydraulic shop presses. Central Machinery 20 Ton H-Frame Floor Shop Press is the cheaper of the two at $269.99.

## Side by side

| Spec | Central Machinery 20 Ton H-Frame Floor Shop Press | Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press |
| --- | --- | --- |
| US price | $269.99 | $699.99 |
| Brand | Central Machinery (Harbor Freight) | Black Widow |
| Capacity tons | 20 | 20 |
| RAM stroke (in) | 5.5 | 7.25 |
| Frame type | H-frame (open-side, floor-standing) | H-frame |
| Working width (in) | 27.5625 | 29.5 |
| Bed height adjustment | Raise/lower table via pinned positions for working distance | 9 pinned positions spaced 4-3/4 in. apart |
| Pump type | manual (hand pump) | manual/air (110-120 psi air-over-hydraulic or hand pump) |
| Pressure gauge | — | Yes |
| Weight (lb) | 175 | 216 |
| Screw stroke (in) | — | — |
| RAM diameter (in) | — | — |
| Screw traverse | — | — |

## Key differences

- RAM stroke (in): Central Machinery 20 Ton H-Frame Floor Shop Press 5.5 vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press 7.25
- Frame type: Central Machinery 20 Ton H-Frame Floor Shop Press H-frame (open-side, floor-standing) vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press H-frame
- Working width (in): Central Machinery 20 Ton H-Frame Floor Shop Press 27.5625 vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press 29.5
- Bed height adjustment: Central Machinery 20 Ton H-Frame Floor Shop Press Raise/lower table via pinned positions for working distance vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press 9 pinned positions spaced 4-3/4 in. apart
- Pump type: Central Machinery 20 Ton H-Frame Floor Shop Press manual (hand pump) vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press manual/air (110-120 psi air-over-hydraulic or hand pump)
- Weight (lb): Central Machinery 20 Ton H-Frame Floor Shop Press 175 vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press 216

## Sources

- Central Machinery 20 Ton H-Frame Floor Shop Press: https://www.harborfreight.com/20-ton-h-frame-floor-shop-press-70603.html (harborfreight.com, verified 2026-08-12)
- Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press: https://www.discountramps.com/20-ton-shop-press/p/BD-PRESS-20A/ (discountramps.com, verified 2026-08-12)

Canonical: https://frontdeskreview.com/gear/hydraulic-shop-presses/central-machinery-70603-vs-black-widow-bd-press-20a/
Cite: Per The Front Desk Review, Central Machinery 20 Ton H-Frame Floor Shop Press ($269.99) vs Black Widow BD-PRESS-20A 20 Ton Air-Operated Shop Press ($699.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/hydraulic-shop-presses/central-machinery-70603-vs-black-widow-bd-press-20a/
License: CC BY 4.0.