Hartford HSA-427EA
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-427EA cost?
Price estimate
We do not have a price for the Hartford HSA-427EA 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
With 2,700 mm (106.3 in) of Y travel over a 2,200 mm wide table, the Hartford HSA-427EA is the four-metre five-face HSA for parts whose long sides need machining. X travel is 4,000 mm (157.5 in). The table measures 4,000 x 2,200 mm (157.5 x 86.6 in) and is rated for 12,000 kg (26,455 lb).
The same table sits under the HSA-423EA, where the Y axis stops at 2,300 mm (90.6 in). On the 427EA the spindle can travel beyond both table edges with an angular head mounted, so a part close to full table width can still be drilled and milled along its flanks.
The decision that matters more is against the HSA-428EA, which has only slightly more Y, 2,800 mm (110.2 in), but a 4,000 x 2,500 mm (157.5 x 98.4 in) table that carries 18,000 kg (39,683 lb). If the workpieces are dense steel, the 427EA's 12,000 kg will be the limit long before its travels are.
This model's table names the 10,000 rpm spindle as a hybrid built-in type, alongside the #50 gear head at 6,000 rpm with 8,000 rpm optional. Z travel is 1,000 mm, or 1,200 mm.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 4,000 x 2,200 mm (157.5 x 86.6 in) |
| Max Table Load | 12,000 kg (26,455 lb) |
| T-Slots | 28 x 250 (15) mm |
| X Axis Travel | 4,000 mm (157.5 in) |
| Y Axis Travel | 2,700 mm (106.3 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 / 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
- Y travel of 2,700 mm (106.3 in) against a 2,200 mm table width
- 4,000 mm (157.5 in) of X travel with a 12,000 kg (26,455 lb) rating
- Hybrid built-in spindle at 10,000 rpm as an alternative to the gear head
- Angular heads change automatically through a switching compartment
Limitations
- Carries 12,000 kg where the HSA-428EA carries 18,000 kg (39,683 lb)
- Y-axis ballscrew support is an option for the x27 series
- A four-metre X axis is not covered by Hartford's standard-above-5-meters statement on screw support
Best For
Frequently Asked Questions
01
Only in Y travel. The HSA-427EA has 2,700 mm (106.3 in), the HSA-423EA 2,300 mm (90.6 in). Table size, 4,000 x 2,200 mm, and load, 12,000 kg, are the same on both machines.
02
The HSA-428EA, which is rated for 18,000 kg (39,683 lb) on a 4,000 x 2,500 mm (157.5 x 98.4 in) table. The HSA-427EA is rated for 12,000 kg (26,455 lb).
03
A #50 gear head at 6,000 rpm with 8,000 rpm as an option, and a hybrid built-in spindle at 10,000 rpm. Hartford's text for the model also mentions DDS as a spindle choice. Rated power is 18.5 / 22 kW, or 30 / 35 kW optionally.
04
1,000 mm, with 1,200 mm available. Hartford puts the Z axis on four linear guideways in what it calls a three binding structure, and states that this two-way support adds 20% rigidity while cutting.
