Most buyers comparing vertical machining centers get stuck at the same place: a stack of spec sheets that look almost identical. Travel ranges differ by a few hundred millimeters, spindle speeds repeat, and every supplier claims precision. The useful question is not which machine has the longest feature list. It is which envelope, which spindle, and which component set actually matches the parts you run every day.
Jiangsu Vanant CNC Technology builds a compact but deliberately layered lineup — the VNT-A series of vertical machining centers and the S600 high-speed drilling and tapping center. Each model shares a common engineering language, so a shop can scale up or down without relearning the machine. Here is how the range breaks down, and where the decisions really sit.
One Design Language, Four Working Envelopes
The VNT-A series starts at the VNT-A855: 800 × 550 × 550 mm of X/Y/Z travel on a 1000 × 550 mm table rated to 800 kg. It suits mold bases, plate work, fixture bodies and general job-shop milling where floor space is at a premium and the part envelope rarely exceeds half a meter.
Move up and the table grows faster than the footprint. The VNT-A1160 opens to 1100 × 600 × 600 mm on a 1200 × 600 mm table, with a 650 mm spindle-center-to-column distance that gives long parts somewhere to sit. The VNT-A1270 pushes X to 1200 mm and the table to 1300 × 700 mm. At the top, the VNT-A1370 reaches 1300 × 700 × 700 mm on a 1400 × 700 mm table rated to 1000 kg, and offers BT-40 or BT-50 tooling for heavier cuts.
Across the family, the numbers that matter to production planners hold steady: 36/36/36 m/min rapid traverse on all three axes, cutting feed from 1 to 10,000 mm/min, a minimum input unit of 0.001 mm, repeat positioning of ±0.003 mm, an 11 kW spindle motor, and a 24-tool disc magazine with a 1.8-second tool-to-tool change. Positioning accuracy is ±0.005 mm on the three smaller models and ±0.003 mm on the A1370.
Where the Budget Actually Goes
Vanant's stated position is high-end imported key components, and the bill of materials reflects it. The control is SYNTEC, FANUC or Mitsubishi — Taiwanese or Japanese origin depending on configuration. Ball screws are JIS-C3 grade, 40 mm diameter with 12 mm pitch, sourced from HIWIN, PMI or SHAC. Linear guideways are 35/45/45 series rollers or hardened ways on the A855 and A1370, 45 mm roller guides with sliders on the A1160 and A1270. Screw bearings are NSK or NACHI from Japan. Electrical components are Schneider; pneumatics are Mindman; the automatic lubricator is Boten from Taiwan; the spindle chiller is Ruike.
Spindles come from Ruien, Okada or Kenchun in Taiwan, with belt-driven 10,000 rpm and direct-driven 12,000 rpm variants. The tool magazine is OKADA or Fangguan. Where an original supplier cannot deliver, Vanant substitutes an equivalent-quality brand rather than shipping the order late — a detail worth confirming in the contract, because it is the difference between a delivery date that holds and one that slips.
What the Enclosure Tells You Before You Cut Metal
Photographs of the VNT-A855 show a fully enclosed, single-column vertical machining center in a blue and black split-color body, with twin front sliding doors and large viewing panels on both the front and the left side. Full guarding matters in real shops: it keeps coolant and chips contained, cuts noise, and lets an operator watch a cut without standing in the splash zone.
The control cabinet is a separate column mounted at the right front corner, carrying a flat display, a full keyboard and function-key grid, feed and spindle override dials, and a red emergency stop. A coiled handwheel pendant hangs alongside — the operator can jog and touch off without reaching across the table. A three-section signal tower sits at the top of the column, and warning placards are fixed to the left panel where they are seen before the doors open. Inside, the worktable carries five T-slots, and the disc magazine is visible within the working enclosure, keeping tools out of the chip path.
Underneath, the base is a widened inclined casting with anchor feet — the mass sits low, which is exactly where it does the most good for vibration control on interrupted cuts.
The Spindle Curve Is the Honest Spec
Peak spindle power printed on a datasheet says little about whether a machine will pull a 40 mm face mill through steel. The torque curve says more. Vanant publishes three lines for the spindle motor: 52.5 Nm continuous, 72 Nm under the S2 23-minute duty line, and 95.5 Nm at low speed under S3/S6 at 15% duty, all falling away as speed climbs toward 12,000 rpm.
Read plainly: the high-torque window lives below roughly 2,000 rpm, which is where heavy roughing belongs. Above that, the machine is a high-speed tool. Shops that plan around this — roughing at low rpm with large radial engagement, finishing at high rpm with light cuts — get both productivity and tool life. Shops that run a small cutter at 10,000 rpm and expect roughing torque will be disappointed by every machine on the market, not just this one.
The S600 Does a Different Job
The S600 drilling and tapping center is not a smaller VMC. Its 620 × 420 × 330 mm travels and 700 × 420 mm table rated to 250 kg serve small aluminum and steel parts — brackets, covers, housings, electronics fixtures. What sets it apart is speed: a direct-driven BT-30 spindle at 20,000 rpm, 48/48/48 m/min rapids, and a 21-tool tilting magazine. Positions repeat to ±0.003 mm. If your process is drill, tap, chamfer, repeat — thousands of times a shift — this is the correct machine, and a 12,000 rpm VMC is not.
From Foundation Drawing to Signature
Vanant runs acceptance in two stages. Pre-acceptance happens at the factory 30 days before shipment, against a written checklist. Final acceptance follows on site within three working days of installation: visual inspection, tooling inventory against the contract, an operation test to factory procedure, a performance test of standard functions, and geometric accuracy checked against the factory report.
One month before delivery, Vanant sends engineers to confirm site preparations and supply foundation drawings, layout drawings, and the full utility requirements: 3-phase 380V 50Hz supply within ±10%, copper grounding of at least 10 mm² with resistance under 4Ω, compressed air at 6 kg or above filtered to 100 μm, and a concrete foundation of at least 600 mm compacted thickness at 20.68 MPa or better. Ambient conditions call for 10–40°C operating range, with 15–25°C and ≤ ±2°C daily swing preferred for holding static accuracy. On-site technicians travel at Vanant's expense; the customer arranges accommodation, meals and transport.
Each machine ships with a paper accuracy inspection report, an electronic CNC system manual, and an electronic Chinese operation manual. Technical agreements specify a 36-month free warranty from the date of arrival at the customer's site, with lifelong paid maintenance afterward.
About the Builder
Jiangsu Vanant CNC Technology Co., Ltd. is a national high-tech enterprise founded in 2013, with branded operations beginning in 2019. The company develops and manufactures five-axis machining centers, high-speed drilling and tapping centers, vertical machining centers, gantry machining centers, horizontal machining centers and turning centers, and works with Heidenhain, Siemens, FANUC and Mitsubishi on control and drive integration. Its stated market position — advanced technology, solid quality, moderate pricing, attentive service — is aimed squarely at machining shops that need dependable capability without premium-brand overhead.
Next Step
If you are a distributor or an end user weighing the A855 against the A1160, or a VMC against the S600, send your part drawings and cycle requirements. Vanant will map them to a model, confirm the spindle and control configuration, and quote against a real envelope rather than a brochure.
Jiangsu Vanant CNC Technology Co., Ltd.
Building 3, No. 338 Pusha Road, Linhu Town, Wuzhong District, Suzhou, China
Contact: Cai Zhiming
Phone: 13862028272
Fax: 0512-66080787
Email: 504620921@qq.com
Website: www.vanantcnc.com
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