What to Look for When Buying a Used Yama Seiki
Yama Seiki machines are built on heavy Meehanite cast iron frames with deeply ribbed structures for rigidity and long-term accuracy.
On machining centers, check the spindle, ways, and ballscrews. Measure spindle runout at the taper face and 6 inches from the nose. Listen for bearing noise across full RPM range. On box-way machines (the majority of Yama Seiki models), inspect way surfaces for scoring or uneven wear. Check ballscrew backlash on all axes.
On turning centers, inspect the spindle, chuck, and tailstock. Measure spindle runout at the chuck face and verify bearing condition across RPM settings. Check the hydraulic chuck for consistent clamping pressure and inspect tailstock alignment. On SVD sub-spindle models, test the part handoff for reliable transfer.
Verify the Fanuc control and servo system. All Yama Seiki machines ship with Fanuc controls. Check alarm history, verify axis servos respond smoothly through full travel, and test optional features (rigid tapping, high-speed machining, probing) to confirm they function correctly.
Inspect coolant and chip management. Check the coolant tank for contamination, verify pump pressure, and test through-spindle coolant if equipped. On bridge mills and double column machines, inspect telescoping way covers.
Yama Seiki Vertical Machining Centers
GV Series
The GV series is Yama Seiki's core VMC platform, built on box-way construction with heavily ribbed castings for maximum rigidity. Models include the GV-1000, GV-1300, GV-1600, and GV-2000, spanning tables from 40x20 inches through 80x30 inches. Features include Fanuc controls, gear-driven or direct-drive spindles, 24-tool arm-type ATC, and rigid tapping. Popular where heavy cutting matters more than high-speed finishing.
AF and AFV Series (High-Speed VMCs)
The AF and AFV series deliver high-speed machining with direct-drive spindles at 12,000 to 15,000 RPM. Linear guideways provide fast rapids and smooth surface finishes. Models include the AF-850, AFV-800, AFV-1000, and AFV-1200, serving mold and die shops, aerospace, and precision production.
BM Series (Bridge Mills)
The BM series bridge-type machining centers are among Yama Seiki's most distinctive products. The bridge design supports the spindle from both sides, eliminating the overhang inherent in C-frame VMCs. Models include the BM-850, BM-1020, BM-1200, and BM-1600. Box-way construction, high-torque spindles, and heavy castings suit aggressive material removal on steel, cast iron, and titanium.
Double Column Machining Centers
Yama Seiki's double column machines handle large workpieces requiring extended X-axis travel and maximum rigidity. Heavy castings, box ways, and high-torque spindles serve aerospace structurals, energy fabricators, and heavy equipment builders.
Yama Seiki CNC Turning Centers
SVL Series (Slant-Bed Lathes)
The SVL series is Yama Seiki's primary CNC turning platform. Models include the SVL-12, SVL-20, SVL-25, SVL-30, and SVL-40, covering swings from 12 to 40 inches. All feature slant-bed construction with hardened and ground box ways, high-torque spindles, and Fanuc controls. The SVL series delivers solid performance for chucking and shaft work.
SVD Series (Sub-Spindle Lathes)
The SVD series adds a programmable sub-spindle for complete part machining in a single setup. Available with live tooling and Y-axis, the SVD reduces cycle time and improves concentricity by eliminating re-chucking for back-end work.
How to Sell Your Used Yama Seiki
Yama Seiki machines hold solid resale value thanks to robust construction, Fanuc controls, and a strong reliability reputation. GV-series VMCs, BM bridge mills, and SVL-series lathes see consistent demand.
Resell CNC buys used Yama Seiki machines, every model, nationwide.
- Contact us at (844) 478-8181 or sales@resellcnc.com.
- Free appraisal within 24 hours, no obligation.
- Accept the offer and we handle rigging, transport, and logistics.
Frequently Asked Questions About Used Yama Seiki Machines
Are used Yama Seiki machines reliable?
Yes. Yama Seiki machines are built on heavily ribbed Meehanite cast iron frames with hardened and ground way surfaces for long-term accuracy. The company manufactures castings and spindles in-house, maintaining tight quality control. Fanuc controls (standard on all models) provide proven reliability and broad parts availability.
What CNC control does Yama Seiki use?
Yama Seiki standardizes on Fanuc controls across the entire product line. Fanuc is the most widely used CNC platform in North America, so most shops have trained operators. Parts and service support is readily available nationwide.
What should I inspect before buying a used Yama Seiki?
Focus on spindle runout and bearing condition, way surfaces on box-way models, ballscrew backlash on all axes, hydraulic pressure, and Fanuc control alarm history. On bridge mills and double column machines, inspect way covers and check axis squareness.
What Yama Seiki models hold their value best?
GV-series VMCs and BM-series bridge mills maintain the strongest resale values due to heavy construction and versatility. SVL-series lathes in popular swings (20 to 25 inch) also hold value well. Machines with low hours and current Fanuc controls command the highest prices. Call (844) 478-8181 for current valuations.
Where are Yama Seiki machines manufactured?
Yama Seiki machines are designed and manufactured in Taichung, Taiwan. The company operates its own foundry and production facilities, manufacturing castings and spindles in-house. Yama Seiki USA (City of Industry, California) provides North American sales, service, and parts.
What is the difference between a GV-series VMC and a BM-series bridge mill?
The GV series uses a traditional C-frame; the BM series uses a bridge-type design where the spindle is supported from both sides. The bridge design provides greater rigidity for heavy cutting on large or hard materials. BM machines suit heavier milling; GV machines offer a versatile platform for general-purpose work.
Does Resell CNC offer financing on used Yama Seiki machines?
Yes. Resell CNC offers flexible financing options. Call (844) 478-8181 to discuss terms.
How do I sell my used Yama Seiki?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every Yama Seiki model nationwide. Free appraisal within 24 hours.