Hartford Aero-646B

Q: How much does the Hartford Aero-646B cost?

The price estimate for the Hartford Aero-646B is uncertain: we have no price for it that we can cite and no estimate we can stand behind, so we give no figure. Configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/hartford-aero-646b#price; the request is passed to Hartford or an authorised dealer.

Specs verified 2026-10-04 · hartfordcnc.com Updated 2026-10-04

Image: hartfordcnc.com, Hartford

Key Specifications

Spindle Taper

#50

Tool Capacity

S type 30 (opt 40), A type 40 (opt 60) pcs

Table Size

6,000 x 4,100 mm (236.2 x 161.4 in)

max table load

5,000 kg/m²

x axis travel

6,000 mm (236.2 in)

y axis travel

4,600 mm (181.1 in)

How much does the Hartford Aero-646B cost?

Price estimate

Uncertain

We do not have a price for the Hartford Aero-646B 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-646B is the largest of the B models in the Aero series of gantry type 5-faced machining centers. The table is 6,000 x 4,100 mm (236.2 x 161.4 in), X travel 6,000 mm (236.2 in), Y travel 4,600 mm (181.1 in).

At 5,000 kg/m² over a table of this size the machine is plainly meant for the heaviest class of part: large stamping dies, steam and gas turbine casings, diesel engine frames, press crowns. With the workpiece standing still and the gantry moving over it, weight has no effect on the axis drives.

A part like that is expensive to scrap, which gives weight to the features Hartford lists for holding accuracy. The Z axis has four linear guideways. The screws are supported against sagging under their own weight and are specified one level larger for static rigidity. And parameters are tuned automatically, a function the maker labels AI intelligent technology.

Above six metres the series continues with G models: the Aero-846G keeps this width with 8,000 mm (315.0 in) of X travel. The spindle on the 646B is a #50 gear head at 6,000 rpm (8,000 rpm optional), with the 10,000 rpm i-Tech hybrid as a further option, and Z travel is 1,000 mm or 1,200 mm.

Full Specifications

Parameter	Value
Table Size	6,000 x 4,100 mm (236.2 x 161.4 in)
Max Table Load	5,000 kg/m²
X Axis Travel	6,000 mm (236.2 in)
Y Axis Travel	4,600 mm (181.1 in)
Z Axis Travel	1,000 (1,200 opt) mm
Spindle Taper	#50
Spindle Speed Gear	6,000 (8,000 opt) rpm
Tool Capacity	S type 30 (opt 40), A type 40 (opt 60) pcs
Tool Shank	BT-50 (CAT50 / DIN69871A / BBT50)

Specifications sourced from hartfordcnc.com — verified 2026-10-04

Strengths & Limitations

Strengths

6,000 x 4,100 mm (236.2 x 161.4 in) table, the largest among the B models
4,600 mm (181.1 in) of Y travel
Supported, upsized screws and four Z-axis guideways
Table rated at 5,000 kg/m² with the workpiece stationary

Limitations

Z travel of 1,000 mm or 1,200 mm limits tall casings
No spindle power stated for the standard gear head
10,000 rpm is the fastest spindle offered, and optional

Best For

Large stamping dies and press crowns Turbine casings and diesel engine frames The heaviest parts up to 6,000 x 4,100 mm

Frequently Asked Questions

01 How big is the Hartford Aero-646B?

The table measures 6,000 x 4,100 mm (236.2 x 161.4 in). X travel is 6,000 mm, Y travel 4,600 mm (181.1 in) and Z travel 1,000 mm, with a 1,200 mm option. The table rating is 5,000 kg/m².

02 What accuracy features does Hartford list for the Aero-646B?

A Z axis with four linear guideways, a screw support mechanism that improves dead weight sagging of the screw, a screw specification increased by one level for static rigidity, and automatic parameter tuning to maintain accuracy.

03 Is the Aero-646B the widest Aero?

It shares the widest cross section. The Aero-546B, Aero-846G and Aero-1046G also have 4,600 mm (181.1 in) of Y travel over a 4,100 mm wide table, at other lengths.

04 What is the next length above the Aero-646B?

The Aero-846G, with an 8,000 x 4,100 mm (315.0 x 161.4 in) table and 8,000 mm (315.0 in) of X travel. Y and Z travels and the spindle rows are unchanged.