Competitive Benchmark · 2026
Gree CNC vs Union MT (Taiwan): Spec Benchmark
A side-by-side look at how Gree's flagship CNC machines line up against Taiwan's Union MT (国合科技股份有限公司) — a Taichung maker that runs its own brand plus Swiss Schaublin / Tschudin distribution. Four tracks: dual five-axis gantry, dual-spindle VMC, general VMC and CNC turning. ← GREE CNC
How to read this benchmark — and its limits. Figures are manufacturer-published specifications, not results from a shared paid trial part. Gree numbers come from Gree's 2026 catalog; Union MT numbers come from Union MT's official website and Taiwan trade-catalog mirrors. Both are treated as Medium confidence until confirmed by a written quotation for the exact model — especially competitor specs sourced from the web. Neither brand publishes prices (both quotation-based), and Gree machine weights are not in the 2026 catalog, so those cells read not listed. This is an analytical comparison, not a buying recommendation.
Contents
Gree and Union MT overlap as rivals in the overseas CNC market (Germany, Southeast Asia and beyond), but they attack different part classes. Gree's edge is in large, high-speed, automation-ready machines — the dual five-axis gantry and the 20,000 rpm / 80 m/min dual-spindle VMC. Union MT's edge is in precision-depth and heavy turning — a fuller five-axis VMC range and a 9,564 Nm oil-country lathe.
- Gree leads on: dual five-axis gantry (no Union MT equivalent for large structurals), 20,000 rpm spindles + 80 m/min rapid on the dual-spindle VMC, and in-house scale (two campuses ≈172,000 m², R&D ≈50% of staff, 1,939 licensed patents).
- Union MT leads on: five-axis VMC range depth (255 / 320 / 500 mm classes), Taiwan scrape-and-fit precision heritage (ISO 230-2 0.008 / 0.005 mm on the dual-spindle line), Swiss-brand credibility (Schaublin / Tschudin), and big-bore oil-country turning.
- Both withhold: public prices (quotation-only) and — for Gree — machine weights.
4
Machine tracks benchmarked head-to-head
20k
Gree spindle rpm on FMB3020D & GF2755
9,564
Union MT SC6000 spindle torque (Nm)
0
Public prices from either brand
Positioning at a Glance
| Dimension | Gree CNC (GREE CNC) | Union MT (国合) |
|---|---|---|
| Origin & base | Zhuhai, China — two campuses ≈172,000 m², R&D ≈50% of staff, 1,939 licensed patents | Taichung, Taiwan — own brand + distributes Swiss Schaublin / Tschudin |
| Market posture | High-speed, large-envelope, machine+automation packages | High-end precision, multi-spindle & five-axis, oil-country turning |
| Overlap with Gree | Both sell into Germany, Southeast Asia and other overseas CNC markets — direct competitors in several tracks | |
1 · Dual Five-Axis Gantry — Gree GA-FMB3020D vs Union MT MVX320 5AX
Note: the FMB3020D is a dual five-axis gantry (large / structural parts); the MVX320 is a compact five-axis VMC (small complex parts). Different structures — a category-level, not like-for-like, match.
| Parameter | Gree GA-FMB3020D | Union MT MVX320 5AX |
|---|---|---|
| Structure | Dual five-axis gantry (high-bridge one-piece cast beam) | Five-axis vertical machining centre (C-frame) |
| Travel X / Y / Z | 2700 / 1900 / 1250 mm (X1/X2 twin axes) | 460 / 610 / 510 mm (Y is ±305 swing) |
| Work envelope | Hidden twin tool magazines (large capacity); max part: NEV chassis / front cabin / battery-tray die-castings | Ø320 mm table, 100 kg load |
| Spindle | HSK A63 motorized spindle, 20,000 rpm; 20/24 kW; 35/42 Nm | 12,000 / 15,000 / 24,000 rpm |
| Drive | Signature X/Y synchronous linear-motor direct drive (manufacturer cites +25% efficiency) | Roller linear guides 35/45/45 + 45 mm ball screw |
| Rapid traverse | not listed | 36 / 36 / 30 m/min |
| Tool magazine | 2 × 40 (twin magazines), tool change ≤ 2.5 s | 24 (30/48 opt) |
| Positioning / repeatability | 0.035 / 0.025 / 0.016 / 0.014 / 0.012 mm | 0.005 / 0.004 mm (ISO 230-2) |
| Machine weight | not listed | 7,400 kg |
2 · Dual-Spindle VMC — Gree GA-GF2755 vs Union MT NV440D
Both brands ship a dual-spindle model — the closest like-for-like track in this benchmark.
| Parameter | Gree GA-GF2755 | Union MT NV440D |
|---|---|---|
| Positioning | High-speed direct-drive + dual-spindle sync (aluminium profiles / battery structurals) | Dual-spindle VMC (aerospace / auto / mold / medical) |
| Travel X / Y / Z | 2400 / 500 / 600 mm | 610 / 435 / 450 mm |
| Table | not listed | 1,200 × 410 mm, 500 kg load |
| Spindle | Motorized spindle, 20,000 rpm; 20/24 kW; 35/42 Nm | Dual BBT40, 8,000 (12,000 opt) rpm |
| Spindle centre distance | not listed | 400 mm (NV430D: 300 mm) |
| Rapid traverse | 80 m/min (X axis; GF5455DD / GFU3755) | 36 / 36 / 36 m/min |
| Tool magazine | 24 tools, tool change ≤ 2.5 s | 24 × 2 (twin arm), 3.5 s |
| Positioning / repeatability | 0.018 / 0.015 / 0.014 / 0.010 mm | 0.008 / 0.005 mm (ISO 230-2) |
| Machine weight | not listed | 5,200 kg |
3 · General VMC — Gree GA-MV series vs Union MT MV1000
| Parameter | Gree GA-MV856 ~ MV1580 | Union MT MV1000 |
|---|---|---|
| Travel X / Y / Z |
MV856 800/550/600 · MV1165 1100/650/600 MV1270 1200/700/600 · MV1370 1300/700/700 MV1580 1500/800/700 (mm) | 1,020 / 610 / 610 mm |
| Table | not listed | 1,200 × 600 mm, 900 kg load |
| Spindle speed | MV856~1370: BT40 12,000 rpm; MV1580: BT50 belt 8,000 rpm | 10,000 ~ 24,000 rpm |
| Spindle power / torque | 7.5~15 / 11~18.5 kW; 35.8~143 / 95.5~236 Nm | — |
| Rapid traverse | not listed | 36/36/36 or 48/48/48 m/min |
| Acceleration | not listed | 1 G |
| Structural rigidity | C3 ball screw + P-grade roller linear guides + annealed castings | > 2.5 kgf/μm |
| Positioning / repeatability | 0.01 / 0.006 (MV856~1165) · 0.012 / 0.008 (MV1370~1580) | — |
| Tool magazine | Standard 24 / 30-tool ATC, FANUC 3-axis | 24 (30/48 opt) |
| Controller | FANUC | FANUC α series |
4 · CNC Turning — Gree GA-HT/TM vs Union MT SC6000
| Parameter | Gree GA-HT6065 / TM6055 / TMY6555 | Union MT SC6000 (Oil Country) |
|---|---|---|
| Structure | Slant bed, cast-iron base; BMT servo power turret (Y optional on TMY) | 45° slant bed, Meehanite cast one-piece base |
| X / Z (Y) travel |
HT6065 X/Z 250/650 TM6055 X/Z 230/600 TMY6555 X/Y/Z 230/±50/550 (mm) | 450 / 1,250 ~ 3,250 mm |
| Work envelope | Swing / machining / length: HT 600/400/600 · TM 600/420/550 · TMY 650/420/525 (mm); 8″ chuck; 4,500 rpm | Max swing Ø970 / turning Ø850 / length 1,110~3,200 mm; 18″ (up to 32″) chuck |
| Spindle | High-torque high-speed built-in motorized spindle, 4,500 rpm; 15/18.5 kW; tool change 0.2 s | 3-stage gear |
| Spindle torque | not listed | 9,564 Nm |
| Turret | BMT servo power turret (Y optional) | 12-station servo turret |
| Machine weight | not listed | — |
Where Each Side Leads
Gree's advantages
- Dual five-axis gantry (FMB3020D): synchronous linear-motor direct drive, manufacturer-cited +25% efficiency — no Union MT equivalent for large structurals.
- Dual-spindle VMC (GF2755): 20,000 rpm spindle and 80 m/min X-rapid — clearly faster than Union MT's NV line (8–12k rpm / 36 m/min).
- Turning speed: 4,500 rpm built-in motorized spindle + 0.2 s tool change suits fast-cycle small parts better than Union MT's heavy geared SC6000.
- Scale & in-house depth: two campuses ≈172,000 m², R&D ≈50%, 1,939 patents — a more systematic capability base.
Union MT's advantages
- Five-axis VMC range: fuller lineup (255 / 320 / 500 mm classes); deeper in small complex-part five-axis.
- Dual-spindle precision: Taiwan scrape-and-fit heritage, ISO 230-2 0.008 / 0.005 mm — a strong stability reputation.
- Swiss-brand backing: distributes Schaublin / Tschudin — high trust with European / US customers.
- Big-bore turning (SC6000): 9,564 Nm torque, up to 3.2 m length — built for oil-country / heavy industry (Gree turning skews smaller).
Open Data Gaps
The following are not in the source material — request from the vendor before any commercial use:
- ① Gree machine weights (kg) for every compared model — absent from the 2026 catalog parameter table.
- ② Gree gantry / VMC rapid-traverse speeds (only GF5455DD / GFU3755 list 80 m/min; others unlisted).
- ③ Union MT list pricing — quotation-only through Taiwan office / overseas agents.
- ④ ISO 230-2 / VDI 3441 full test reports for both brands — neither publishes them openly; request per exact model.
FAQ
Does Union MT (国合) list prices on its website?
No. Like most B2B machine-tool makers, Union MT's website (unionmt.com) shows model families and specifications but no public price list — pricing is quotation-based through its Taiwan office or overseas agents. This benchmark excludes price for both brands.
What are the Gree GA-FMB3020D travel and spindle specifications?
Per Gree's 2026 catalog: a dual five-axis gantry with X/Y/Z travel of 2700 / 1900 / 1250 mm (twin X1/X2 axes), an HSK A63 motorized spindle at 20,000 rpm (20/24 kW, 35/42 Nm), twin 40-tool magazines with ≤2.5 s tool changes, and positioning accuracy of 0.035/0.025/0.016/0.014/0.012 mm.
How credible are the figures in this benchmark?
Gree figures are from Gree's official 2026 catalog (manufacturer specs). Union MT figures are from Union MT's official website and Taiwan trade-catalog mirrors (manufacturer specs). All are treated as Medium confidence until verified by a written quotation for the exact model — particularly competitor specs sourced from the web. Gree machine weights are not published in the 2026 catalog.
Does Gree publish machine weights?
Not in the 2026 catalog's parameter table — the weight column is absent for the compared models. Union MT lists weights on its site where available. Treat Gree weights as unavailable rather than zero.
