2023 Haas ST-45
Metal Cutting
CNC Lathes
Haas ST-45
8 Haas ST-45 listings have come through the used market we track: 7 marketplaces, built 2014–2023.
17 inX-axis travel
34.5 inSwing
25.5 inMax turning diameter
44 inMax turning length
What the maker publishes about the current Haas ST-45
Haas builds the ST-45 as a big-bore turning center in its ST Series, with a Haas control. The spindle has an A2-11 nose and a 7.00 in bore, uses a 2-speed gearbox, and is rated 40.0 hp with a top speed of 1400 rpm. Peak torque is 1400.0 ft-lbf at 150 rpm, and an XP option is listed at 55.0 hp. Maximum part swing is 35.5 in. Cutting diameter reaches 30.00 in with the bolt-on turret, which holds 12 stations. X travel is 20.00 in and Z travel is 44.00 in. Maximum cutting length is 44.0 in and varies with workholding. Both axes rapid at 710 ipm. An 18.0 in chuck is optional, and bar capacity with optional workholding is 6.50 in. The coolant tank holds 95 gal.
Source: Haas Automation, October 18, 2026.
Haas ST-45 specifications
Manufacturer specification. Read from the manufacturer’s published specification and checked against it word for word.
Figures as currently published; an older unit may differ in control generation and options.
Capacity and travels
Swing over bedMax Part Swing
35.5 in
Max turning diameterMax Cutting Diameter (with BOT turret)
30.00 inwith BOT turret
Max turning lengthMax Cutting Length (varies with workholding)
44.0 invaries with workholding
Chuck sizeChuck (optional)
18.0 inoptional
Bar capacityBar Capacity w/ Opt. Workholding
6.50 inwith optional workholding
X-axis travelX Axis
20.00 in
Z-axis travelZ Axis
44.00 in
Spindle and speed
Max spindle speedMax Speed
1400 rpm
Spindle motor powerSpindle Power
40.0 hp
Spindle noseSpindle Nose
A2-11
Table, turret and tools
Turret stationsNumber of Tools
12-Station BOT
Control
ControlThe Haas Control
Haas Control
Further figures the manufacturer publishes
Spindle Bore ø
7.00 in
Max Torque
1400.0 ft-lbf @ 150 rpm
Max Rating
55.0 hpXP option (optional)
Rapids on X
710 ipm
Rapids on Z
710 ipm
Coolant Capacity
95 gal
- manufacturer specification page, fetched October 18, 2026.
What fits a Haas ST-45
Each of these follows from a published specification above, which is named beside it.
Workholding
An 18-inch chuck. Jaw sets, soft jaws and collet chucks for this size are commodity items, but the chuck itself, and any spare jaws, travel with the machine and are counted in an offer.
Derived from Chuck size: 18.0 in
Bar feeder fit
Bar capacity is 6.5 in, so a bar feeder for this machine has to be sized for stock up to that diameter.
Derived from Bar capacity: 6.50 in
What to check on a Haas ST-45
- Control generation. The manufacturer specifies Haas Control for this model. Units we have tracked run 2014 to 2023; an early one may carry an older control or a retrofit.
- Spindle. The manufacturer gives a spindle speed of 1400 rpm. Run the spindle to top speed and listen for bearing noise.
- Spindle load. The manufacturer gives 40.0 hp of spindle power and 1400.0 ft-lbf @ 150 rpm of spindle torque. Take a heavy cut and watch the load meter.
- Spindle nose. The manufacturer gives a spindle nose of A2-11. Check that the chuck fitted to it runs true.
- Axes and way covers. The manufacturer gives X 20.00 in and Z 44.00 in of travel. Run each axis end to end and check the way covers.
- Turret. The manufacturer gives the turret stations as 12-Station BOT. Index every station and time a full turn.
- Chuck and bar. The manufacturer gives a chuck size of 18.0 in (optional) and a bar capacity of 6.50 in (with optional workholding). Check the jaws and the grip pressure; check any bar feeder is set for that bar.
- Bed and ways. The manufacturer gives a max turning diameter of 30.00 in (with BOT turret) and a max turning length of 44.0 in (varies with workholding). Check the ways for wear near the chuck.
Haas ST-45 control and manuals
- Control Haas Control
Haas posts interactive operator's and service manuals for its mills, lathes and rotary tables on its own site, by machine series, and keeps older editions in an archive section of the same page.
Source: Haas Automation, October 24, 2026.
Haas ST-45 listing history
Where it was listed
equipt.com
2 listings, 2014–2023
cncmachines.com
1 listing, 2023
machinestation.us
1 listing, 2022
machinetools.com
1 listing, 2014
premierequipment.com
1 listing, 2023
surplusrecord.com
1 listing, 2014
usedcnc.com
1 listing, 2016
Filed under CNC Lathes (3).
Model years seen
2023 ×3, 2022, 2016, 2014 ×3.
What Haas ST-45 listings agree on
X-axis travel
17 in
Z-axis travel
44 in
Swing
34.5 in
Max turning diameter
25.5 in
Max turning length
44 in
Chuck size
18 in
Spindle speed
1,400 RPM
Spindle power
40 hp
Turret stations
12
Machine weight
28,000 lb
What affects the value of a used Haas ST-45
- Control. The manufacturer specifies Haas Control.
- Build year. The units we tracked were built from 2014 to 2023, across 4 model years.
- Against the published figures. The manufacturer gives max spindle speed 1400 rpm, spindle motor power 40.0 hp, turret stations 12-Station BOT and chuck size 18.0 in (optional).
Looking for a Haas ST-45 for sale?
We have tracked 8 Haas ST-45 listings on 7 marketplaces (equipt.com, cncmachines.com, machinestation.us, machinetools.com, premierequipment.com, surplusrecord.com and usedcnc.com), model years 2014 to 2023. We buy Haas ST-45 machines and do not sell them.
Every Haas ST-45 we have tracked
2023 Haas ST-45
2023 Haas ST-45
2022 Haas ST-45
Metal Cutting
2016 Haas ST-45
Metal Cutting
2014 Haas ST-45
Metal Cutting
2014 Haas ST-45
2014 Haas ST-45
Metal Cutting
The Haas ST-45 among lathes and turning centers
Browse all CNC Lathes, or see every Haas machine we track.
Models related to the Haas ST-45
- Haas ST-40: manufacturer specification page, fetched October 14, 2026.
- Haas ST-45: manufacturer specification page, fetched October 18, 2026.
Have a Haas ST-45 to sell?
We are the buyer, not a broker. No listing, no consignment, no waiting for someone else to find a buyer. Quote in 24 to 48 hours, and we can arrange rigging, freight and the pickup.
