Hartford HSA-428EAY
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-428EAY cost?
Price estimate
We do not have a price for the Hartford HSA-428EAY 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
Heavy parts and long Y travel come together in the Hartford HSA-428EAY. The 4,000 x 2,500 mm (157.5 x 98.4 in) table is rated for 18,000 kg (39,683 lb), X travel is 4,000 mm (157.5 in), and the Y axis covers 3,600 mm (141.7 in).
This is the first EAY size for which Hartford states Y-axis ballscrew support is the standard configuration: its text names the x28 EAY, x32 EAY and x36 models. With a screw this long that is welcome, because sag in an unsupported screw grows with its length and Y positioning is what locates every side-face feature cut with an angular head.
Against the HSA-428EA the gain is Y travel alone, 3,600 mm compared with 2,800 mm (110.2 in). Against the lighter HSA-427EAY the gain is weight, 18,000 kg compared with 12,000 kg (26,455 lb), plus a table 2,500 mm wide.
Hartford shows an automatic universal head and an automatic angular head switching compartment for the model. The spindle is #50: a gear head at 6,000 rpm with 8,000 rpm as an option, or a hybrid built-in unit at 10,000 rpm. Z travel is 1,000 mm, and 1,200 mm can be ordered.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 4,000 x 2,500 mm (157.5 x 98.4 in) |
| Max Table Load | 18,000 kg (39,683 lb) |
| T-Slots | 22 x 250 (15) mm |
| X Axis Travel | 4,000 mm (157.5 in) |
| Y Axis Travel | 3,600 mm (141.7 in) |
| Z Axis Travel | 1,000 (1,200) mm |
| Spindle Taper | #50 |
| Spindle Speed Gear | 6,000 (8,000) rpm |
| Spindle Speed Hybrid Built in | 10,000 rpm |
| Tool Capacity | A: 32 (40 / 60) pcs |
| Tool Shank | BT-50 (CAT-50 / DIN-50 / 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
- 18,000 kg (39,683 lb) table load with 3,600 mm (141.7 in) of Y travel
- Y-axis ballscrew support stated as standard for the x28 EAY
- 4,000 x 2,500 mm (157.5 x 98.4 in) table
- Automatic universal head and head switching compartment
Limitations
- Four-metre X axis falls between Hartford's standard and optional cases for X screw support
- Spindle speed ends at 10,000 rpm
- Z travel is 1,000 mm unless the 1,200 mm option is taken
Best For
Frequently Asked Questions
01
18,000 kg (39,683 lb) on a 4,000 x 2,500 mm (157.5 x 98.4 in) table with fifteen T-slots. That is the highest rating among the four-metre EAY models.
02
Hartford's text says Y axis ballscrew support is the standard configuration for the x28 EAY, x32 EAY and x36 EA and EAY series, which includes this model.
03
Y travel. The HSA-428EA has 2,800 mm (110.2 in) and the HSA-428EAY 3,600 mm (141.7 in). The table size and the 18,000 kg rating are the same on both.
04
A #50 spindle, listed as a gear head at 6,000 rpm with 8,000 rpm optional and as a hybrid built-in spindle at 10,000 rpm. Power is 18.5 / 22 kW, or 30 / 35 kW as an option, with BT-50 shanks.
