CNC Lathes
Okuma LB-4000EX-II
7 Okuma LB-4000EX-II listings have come through the used market we track: 4 marketplaces, built 2019–2022 where given; 6 machines once repeats are merged.
26.38 inSwing
4,200 RPMSpindle speed
40 hpSpindle power
381 mmChuck size
What the maker published about the Okuma LB-4000EX-II
The LB4000 EX II from Okuma is a 2-axis turning center, named on the maker's page beside the LB3000 EX II and LB2000 EX II as part of the LB EX Series. Its turning limits are 480 mm in diameter and 2,150 mm in length. The JIS A2-8 spindle runs between 42 and 4,200 min⁻¹. Standard drive power reads 30/22 kW, or 40/30 hp. Rapid moves run 30 m/min on the Z slide versus 25 m/min on the X slide. The bed is of slanted box construction, and the lathe follows the Thermo-Friendly Concept, Okuma's approach to keeping thermal growth minimal. The machine carries a PREX motor, its through hole is sized to pass larger work, and the maker describes cutting from heavy work through high-speed work. Control is by an OSP-P unit with open architecture that links to peripheral equipment. Bed length and bore size come in several choices, and live tooling and a Y-axis are among the listed options.
Source: Okuma, an archived copy of the maker's page from 2023, October 27, 2026.
What the Okuma LB-4000EX-II is used for
Okuma's 2023 page gives the LB4000 EX II a high-torque PREX motor for work ranging from heavy cuts to high-speed cutting, a through-hole that takes larger stock, and a choice of bed length, bore size, live tools and a Y axis to match a shop's parts.
Source: Okuma, an archived copy of the maker's page from 2023, October 27, 2026.
Okuma LB-4000EX-II listing history
Where it was listed
surplusrecord.com
4 listings, 2019–2021
machinetools.com
1 listing
resellcnc.com
1 listing, 2022
revelationmachinery.com
1 listing, 2021
Sellers also listed it as SPACE-TURN-LB-4000EXII.
Filed under CNC Lathes (6).
Model years seen
2022, 2021 ×2, 2019 ×3.
What Okuma LB-4000EX-II listings agree on
Swing
26.38 in
Chuck size
381 mm
Bar capacity
4 in
Spindle speed
4,200 RPM
Spindle power
40 hp
Looking for an Okuma LB-4000EX-II for sale?
We have tracked 7 Okuma LB-4000EX-II listings on 4 marketplaces (surplusrecord.com, machinetools.com, resellcnc.com and revelationmachinery.com), model years 2019 to 2022. We buy Okuma LB-4000EX-II machines and do not sell them.
Every Okuma LB-4000EX-II we have tracked
2021 Okuma LB-4000EX-II
2021 Okuma LB-4000EX-II (listed as SPACE-TURN-LB-4000EXII)
Metal Cutting
2019 Okuma LB-4000EX-II
2019 Okuma LB-4000EX-II (listed as SPACE-TURN-LB-4000EXII)
2 listings (surplusrecord.com)
1 more listing, no year.
The Okuma LB-4000EX-II among lathes and turning centers
Browse all CNC Lathes, or see every Okuma machine we track.
Models related to the Okuma LB-4000EX-II
Okuma LB3000 EX-II
Same series
Have an Okuma LB-4000EX-II 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.
