Hartford HSA-420EA
Image: hartfordcnc.com, Hartford
Key Specifications
Spindle Taper
Tool Capacity
Table Size
Spindle Power
max table load
t slots
How much does the Hartford HSA-420EA cost?
Price estimate
We do not have a price for the Hartford HSA-420EA that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
Four metres long and 1,800 mm wide: the Hartford HSA-420EA is the slimmest of the four-metre five-face HSA machines. X travel is 4,000 mm (157.5 in), Y travel 2,000 mm (78.7 in), and the 4,000 x 1,800 mm (157.5 x 70.9 in) table carries 12,000 kg (26,455 lb) on fifteen T-slots.
It shares its cross section with the HSA-220EA and HSA-320EA, which have the same Y travel and table width on shorter beds. What grows with length is the rating: 8,000 kg (17,637 lb) on the HSA-220EA, 10,000 kg (22,046 lb) on the HSA-320EA, 12,000 kg here.
A four-metre machine sits exactly on the boundary of Hartford's statement about X-axis ballscrew support, which is standard on models above 5 meters and optional below 4 meters. Neither half of that sentence covers this size, so settle it in the quotation. The purpose of the support is to stop a long screw sagging under its own weight.
The spindle is #50 with a 6,000 rpm gear head, an 8,000 rpm option and a 10,000 rpm hybrid alternative. Z travel is 1,000 mm or, optionally, 1,200 mm. Side faces are machined with automatic angular heads taken from a switching head compartment.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 4,000 x 1,800 mm (157.5 x 70.9 in) |
| Max Table Load | 12,000 kg (26,455 lb) |
| T-Slots | 22 x 250 (15) mm |
| X Axis Travel | 4,000 mm (157.5 in) |
| Y Axis Travel | 2,000 mm (78.7 in) |
| Z Axis Travel | 1,000 (1,200) mm |
| Spindle Taper | #50 |
| Spindle Speed Gear | 6,000 (8,000) rpm |
| Spindle Speed Hybrid | 10,000 rpm |
| Tool Capacity | A: 32 (40 / 60) pcs |
| Tool Shank | BT-50 (CAT-50 / DIN50 / BBT-50) |
| Spindle Motor Power | 18.5 / 22 opt. 30 / 35 kW (Cont. / 30 min) |
Specifications sourced from hartfordcnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 4,000 mm (157.5 in) of X travel in the narrowest four-metre frame of the line
- 12,000 kg (26,455 lb) table load on a 4,000 x 1,800 mm table
- Automatic universal angular head and switching head compartment for five-face work
- Self-made spindle with deflection within 5 μm, per Hartford
Limitations
- Only 2,000 mm (78.7 in) of Y travel
- Hartford's ballscrew support statement does not say which way four-metre models go
- The table is 1,800 mm wide; the HSA-423EA offers 2,200 mm at the same 12,000 kg rating
Best For
Frequently Asked Questions
01
The table is 4,000 x 1,800 mm (157.5 x 70.9 in) and rated for 12,000 kg (26,455 lb). Travel is 4,000 mm in X, 2,000 mm (78.7 in) in Y and 1,000 mm in Z, with 1,200 mm of Z as an option.
02
Hartford's wording is that X axis ballscrew support is standard for models above 5 meters and optional below 4 meters. A machine of exactly four metres falls between the two, so the answer has to come from Hartford for the specific order.
03
The HSA-423EA is wider: a 4,000 x 2,200 mm (157.5 x 86.6 in) table and 2,300 mm (90.6 in) of Y travel. Both are rated at 12,000 kg and both have 4,000 mm of X.
04
A #50 taper spindle that Hartford makes itself, stated to run with deflection within 5 μm. The gear head is 6,000 rpm with 8,000 rpm optional, and a 10,000 rpm hybrid spindle is also in the table. Power is 18.5 / 22 kW, optionally 30 / 35 kW.
