Hartford S PLUS-8
Image: hartfordcnc.com, Hartford
Key Specifications
Spindle Taper
Tool Capacity
Table Size
Spindle Power
max table load
t slots
How much does the Hartford S PLUS-8 cost?
Price estimate
We do not have a price for the Hartford S PLUS-8 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
Hartford calls the S PLUS line its Production Center, and the S PLUS-8 is the 800 mm member: a linear-guideway vertical machining center with 800 mm (31.5 in) of X travel, 520 mm (20.5 in) of Y, 550 mm (21.7 in) of Z and a #40 spindle.
For a machine of this size the spindle motor list is generous. It begins at 7.5 / 11 kW and continues to 11 / 15 kW and 15 / 18.5 kW as options (Cont. / 30 min). The LG-800, which has the same X travel, lists 5.5 / 7.5 / 11 kW. Speeds are 8,000 / 10,000 / 12,000 rpm from the pulley spindle and 10,000 / 12,000 / 15,000 rpm from the DDS spindle.
Hartford adds two spindle details on this model's page. Bearings are lubricated by an oil-air system, which the maker says makes the spindle capable of long-term running. And the spindle has a two-face binding design, the dual contact of taper and flange, for cutting capability and accuracy.
The work area is a 950 x 520 mm (37.4 x 20.5 in) table with five T-slots and a 500 kg (1,102 lb) average load. Tools are BT40 in a 24-pocket arm-type magazine, with 30 pockets as the alternative, and the minimum tool change time is 1.38 secs. Stated accuracy under Hartford's MGPS standard is positioning within 8μm and repeatability within 5μm.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 950 x 520 mm (37.4 x 20.5 in) |
| Max Table Load | 500 kg (1,102 lb) |
| T-Slots | 18 x 100 (5) mm |
| X Axis Travel | 800 mm (31.5 in) |
| Y Axis Travel | 520 mm (20.5 in) |
| Z Axis Travel | 550 mm (21.7 in) |
| Spindle Taper | #40 |
| Spindle Speed Pulley | 8,000 / 10,000 / 12,000 rpm |
| Spindle Speed Dds | 10,000 / 12,000 / 15,000 rpm |
| Tool Capacity | A: 24 (30) pcs |
| Tool Shank | BT40 (BBT /CAT /DIN) |
| Spindle Motor Power | 7.5 / 11 opt. 11 / 15, 15 /18.5 kW (Cont. / 30 min) |
Specifications sourced from hartfordcnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Motor options up to 15 / 18.5 kW (Cont. / 30 min) on an 800 mm machine
- Oil-air lubricated spindle bearings for long-term running, per Hartford
- Positioning accuracy within 8μm and repeatability within 5μm (MGPS)
- Tool change in a minimum of 1.38 secs with a 24 or 30 tool arm-type magazine
Limitations
- Average table load is 500 kg (1,102 lb)
- Z travel is 550 mm (21.7 in); the LG-800 offers 630 mm (24.8 in)
- Maximum listed spindle speed is 15,000 rpm, and only with the DDS head
- Rapid traverse rates are not published for this model
Best For
Frequently Asked Questions
01
800 mm (31.5 in) in X, 520 mm (20.5 in) in Y and 550 mm (21.7 in) in Z. The table is 950 x 520 mm (37.4 x 20.5 in), has T-slots listed as 18 x 100 (5) mm and carries an average load of 500 kg (1,102 lb).
02
Both have 800 mm (31.5 in) of X travel and a #40 spindle with the same speed lists. The S PLUS-8 has stronger motor options, starting at 7.5 / 11 kW, a slightly deeper Y stroke of 520 mm (20.5 in) and a shorter Z. The LG-800 has 510 mm (20.1 in) of Y and 630 mm (24.8 in) of Z.
03
By oil-air lubrication. Hartford states that the spindle bearing is lubricated by lubrication oil and that the spindle is capable of long term running. The page also describes a two face binding design on the spindle to raise cutting capability and machining accuracy.
04
The ATC row reads A:24 (30) pcs, an arm-type changer with 24 pockets or 30. Hartford gives the minimum tool change time as 1.38 secs. Shanks are BT40, with BBT, CAT and DIN listed as alternatives.
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