VMC 850 vs VMC 1160 vs VMC 1580: Choosing the Right Table Size

Buyers new to Chinese VMCs often ask what the numbers in model names mean. The rule of thumb is simple: the model number roughly tracks the X-axis travel in millimetres. An 850-class machine travels about 800 mm on X, an 1160 about 1,100 mm, and a 1580 about 1,500 mm. Once you know that, choosing between them becomes a question about your parts, not about marketing.

VMC 850: the workshop workhorse

The VMC 850 is the most common vertical machining centre in the world, and for good reason. Typical specifications across the Chinese market are X/Y/Z travels of about 800/500/500 mm, a 1,000 x 500 mm table, a BT40 spindle at 8,000 to 10000 rpm, a 24-tool ATC plus a machine weight around 5.2 tonnes. It suits mould plates up to roughly 600 or 700 mm, brackets, housings, fixtures plus small batch work. Most shops can floor it, power it plus crane it without special arrangements.

Typical listed prices on major B2B platforms range from about US$10,000 for a basic configuration with a local controller to US$36,000 for a full configuration with FANUC or Siemens, and most mainstream configurations cluster in a range from US$20,000 to US$33,000. Treat these as typical listed ranges across the market, not as any single manufacturer's official price.

VMC 1160: the step up

An 1160-class machine extends X travel to about 1,100 mm with a table around 1,200 x 600 mm and Y travel near 600 mm. That extra width is the point: it accepts larger mould bases, holds multiple smaller parts in one setup for lights-out batch work, and covers aerospace brackets plus housings that will not fit an 850. Machine weight rises into the 7 to 9 tonne range, and the spindle is still usually BT40, so tooling plus programming habits carry over.

VMC 1580: large moulds and structural parts

A 1580 travels about 1,500 mm on X with a table around 1,500 x 800 mm or larger, and many builds move up to a BT50 spindle for heavy cutting. This is the class for large mould bases, machine frames, structural parts plus long workpieces that would otherwise need repositioning mid-process. Expect a bigger foundation, a bigger crane plus a meaningfully higher price. Floor loading also deserves a check at this size, since the machine plus workpiece together can challenge older factory slabs. The cheapest way to waste money is buying a 1580 to run parts that fit an 850, because the larger machine cuts no faster on small work.

Envelope versus table size

Do not match your part to the table alone. Notice that an 850's table is 1,000 x 500 mm while its X travel is only about 800 mm: the table deliberately overhangs, so a workpiece can be longer than the travel as long as it clears the column and the door opening. What actually limits you is the combination of travels, the Z clearance from spindle nose to table, the maximum workpiece weight, and how the part sits in your fixture. Tall parts deserve special attention, because Z clearance is the dimension buyers forget most often and the one that causes the most painful surprises at commissioning. Measure your largest part plus fixture and add margin, then compare against travels, not table.

How to choose

A practical rule: pick the smallest machine whose travels cover your largest part and fixture with at least 10 to 20 percent margin in every axis. Bigger machines cost more to buy, power, floor plus load, and they rarely pay for themselves on parts that fit a smaller envelope. Price steps up one tier from an 850 to an 1160, and again to a 1580, so confirm current pricing for the configuration you actually need rather than guessing from old quotes. Send us your largest drawing and we will tell you honestly which class it belongs in.

Talk to VITOP Machinery

Planning a machine purchase or need help matching a model to your parts? Send your drawings or questions to vitopmachinery@163.com, or message us directly on WhatsApp: +86 183 1908 0212. You can also browse all machines at www.vitopmachinery.com. We reply within one business day.