Hartford Aero-631G
Image: hartfordcnc.com, Hartford
Key Specifications
Spindle Taper
Tool Capacity
Table Size
max table load
x axis travel
y axis travel
How much does the Hartford Aero-631G cost?
Price estimate
We do not have a price for the Hartford Aero-631G 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
The Hartford Aero-631G does not follow the pattern of the other six-metre Aero machines. It has 6,000 mm (236.2 in) of X travel and 3,100 mm (122.0 in) of Y, and its table, 6,000 x 3,100 mm (236.2 x 122.0 in), is exactly as wide as the Y travel.
On the sister model Aero-636B the same table sits under 3,600 mm (141.7 in) of Y. With no surplus travel, the 631G spindle cannot move beyond the table edge, which limits side-face work with an angular head to parts narrower than the table. The model suits jobs where most of the machining is on the top face.
Its spec table differs in other rows too. The hybrid spindle at 10,000 rpm is listed in the table itself, next to the gear head at 6,000 rpm with 8,000 rpm optional. The taper is given as BT-50. Magazine capacity is 32 or 40 tools, where the B models offer S and A types up to 60. Z travel reads 1,000 / 1,200 mm.
The table load is 5,000 kg/m², as across the series, and Hartford's description of heads, head changer and screw support is the same as for the other 5-faced Aero models.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 6,000 x 3,100 mm (236.2 x 122.0 in) |
| Max Table Load | 5,000 kg/m² |
| X Axis Travel | 6,000 mm (236.2 in) |
| Y Axis Travel | 3,100 mm (122.0 in) |
| Z Axis Travel | 1,000 / 1,200 mm |
| Spindle Taper | BT-50 |
| Spindle Speed Gear | 6,000 opt. 8,000 rpm |
| Spindle Speed Hybrid | 10,000 rpm |
| Tool Capacity | 32 / 40 pcs |
| Tool Shank | BT-50 (CAT50 / DIN69871A / BBT50) |
Specifications sourced from hartfordcnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 6,000 x 3,100 mm (236.2 x 122.0 in) table rated at 5,000 kg/m²
- Hybrid 10,000 rpm spindle listed in the spec table alongside the gear head
- Narrower gantry than the Aero-636B for the same table
- Screw support mechanism to limit screw sag
Limitations
- Y travel equals table width, leaving no room beside a full-width part
- Magazine listed at 32 or 40 tools only
- Standard gear head speed is 6,000 rpm
Best For
Frequently Asked Questions
01
The Aero-636B has 3,600 mm (141.7 in) of Y travel and magazines of up to 60 tools. The Aero-631G has 3,100 mm (122.0 in) of Y, equal to its table width, and a 32 or 40 tool magazine. Both tables are 6,000 x 3,100 mm.
02
A gear head at 6,000 rpm, with 8,000 rpm optional, and a hybrid spindle at 10,000 rpm. The taper is BT-50, with CAT50, DIN69871A and BBT50 shanks listed as alternatives.
03
Hartford describes it as a 5-faced machine with universal, 90 degree and extension heads. Because Y travel and table width are both 3,100 mm (122.0 in), the part has to be narrower than the table for a head to reach its long sides.
04
5,000 kg/m². The figure is per square metre of the 6,000 x 3,100 mm (236.2 x 122.0 in) table; no total load is stated.
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