Machine tools · Original manufacturer of ultra-precision equipment
Single-point diamond turning lathes, ultra-precision air-bearing grinders and maskless lithography systems — plus the air-bearing spindles and rotary tables that set their accuracy — core components and complete machines, all developed in-house. For optical freeforms, semiconductor wafer thinning and aerospace structures, we deliver nanometre-level accuracy that is repeatable, verifiable and traceable.
Every machine ships with factory inspection reports and two-stage FAT / SAT acceptance · 24-hour on-site response in the Greater Bay Area
Typical ranges; results vary with workpiece material, aperture and process conditions. The technical agreement governs.
Before you enquire
Capital equipment is rarely bought from a spec sheet alone. Here are the four questions buyers actually raise — answered on the front page.
01
A nominal figure proves one cut; stability is what keeps a line running. Every machine ships with inspection reports, and the same datum and the same metrology chain run from our factory to your floor — FAT in-house, SAT in your workshop, data recorded both times.
02
Look at the part before discussing the machine. Send a sample and you get a measured form and roughness report — judged on your material, your aperture and your acceptance criteria, not on photographs.
03
Spindles, guideways and rotary tables are made in-house, so critical parts do not depend on import chains. The configuration list is frozen item by item at contract stage, and delivery is confirmed in writing against configuration and process-validation progress.
04
24-hour on-site attendance in the Greater Bay Area, with a standing spare-parts stock covering spindles, encoders and drives. Remote diagnosis comes first: anything fixable remotely never leaves your line waiting for an engineer.
Product systems
From the machine that turns material into an optical surface, to the core components that set its accuracy, to the instruments that verify it.
Using single-crystal diamond tools to turn non-ferrous metals, IR crystals and polymers straight to an optical surface in one pass. Suited to plano, spherical, aspheric, off-axis and freeform surfaces.
| Model | Positioning | Typical capability |
|---|---|---|
| GPC12100H | Plano ultra-precision 4-axis single-point diamond lathe | Large plano / freeform surfaces, 4-axis simultaneous |
| GP1200H | Large-aperture single-point diamond lathe | IR lenses, mirrors, mould inserts |
| GPS1200N | Nanometre-class ultra-precision lathe | Submicron form / nanometre roughness |
Optional fast-tool servo and B-axis for micro-structure arrays, Fresnel and faceted surfaces.
Shaping and correction of hard-brittle materials and large-aperture optics, with air-bearing spindles delivering low-damage, consistent form.
| Machine | Positioning | Typical capability |
|---|---|---|
| GPS air-bearing grinder | Ultra-precision air-bearing grinding | Optical glass, quartz, ceramics, cemented carbide |
| Wafer thinning grinder | Back-end semiconductor | Whole-wafer thickness uniformity, edge roll-off control |
Grinding and in-process metrology share one datum, cutting the error build-up of repeated clamping.
Direct writing from micro-structures to periodic optical structures, covering both ultrafast (ps / fs) machining and maskless lithography.
| Model | Positioning | Typical capability |
|---|---|---|
| GP3500 | Maskless lithography system | Mask-free direct patterning for fast iteration |
| GPSZWBG-01A | DUV interference lithography | Nanometre-period gratings, diffractive structures |
| Picosecond / femtosecond system | Ultrafast laser machining | Hard-brittle cutting, surface micro-structuring |
Chained with turning and grinding to form a complete form → structure → inspect process segment.
This is where machine accuracy originates. Aerostatic bearings run contact-free, wear-free and micro-vibration-free — the physical precondition for nanometre machining.
| Category | Model | Function |
|---|---|---|
| Air-bearing spindle | GP13364 / GP6212-H10 / GPZ6220H | Main motion for turning, grinding, fly-cutting |
| Air-bearing spindle | GBH-248150BP/SF / GPZ65I95E / GPZ120135349H6 | Large-diameter, high-stiffness duty |
| Air-bearing guideway | GPD-80 series D / GP-YN2020 | Dual-layer air-bearing slide, linear feed |
| Air-bearing rotary table | ABR standard series (table φ120–φ300) | C-axis indexing, roundness datum |
Available as standalone parts or as drop-in replacements for machines in service — the usual route to bring an ageing lathe back to nanometre class.
No trustworthy metrology, no trustworthy accuracy. Measuring and machining equipment share one datum system.
| Instrument | Measured quantity |
|---|---|
| GPLW-AFM01 vacuum atomic force microscope | Nanometre surface topography, roughness |
| Roundness tester | Spindle and workpiece roundness, rotational error |
| Step profiler | Film thickness, step height |
| Linear encoder scale | Displacement feedback, full closed-loop reference |
Machining and inspection share one data definition, so a part that passes in our factory does not fail on your floor.
The machine is only the start; the process package and lifecycle support are what actually get a line running.
Package delivery per workpiece family: machine + tooling + parameters + inspection.
Photos of the machines and components, factory specification tables and component selection tables for twelve models are consolidated into a dedicated product and specification centre — models, key figures, parameters and delivery scope on one page.
Engineering foundations
A nanometre surface comes from five engineering preconditions stacking up. Remove one and the specification only survives in a photograph.
A
Linear motor with encoder / laser-interferometer feedback, 0.001 μm (1 nm) programming resolution. No translation error between command and position.
B
Spindle, guideway and rotary table all ride on air films: contact-free, wear-free, stick-slip-free, with vibration pressed down to the nanometre level and life that does not erode accuracy.
C
Granite base, temperature-stable environment and active isolation — deleting environmental drift from the process variables so the same program cuts the same result tomorrow.
D
In-house diamond tool sharpening, fast/slow-tool servo and direct NURBS reading — form accuracy no longer depends on downstream polishing.
E
On-machine metrology and compensation: measured deviation goes straight back into the tool path. One set-up for both machining and verification.
Applications
The same word — ultra-precision — means entirely different workpieces, materials and acceptance methods in optics, semiconductors and aerospace.
Aspheres, freeforms, off-axis parabolas, diffractive surfaces and IR lenses — turned straight to an optical surface, skipping conventional polishing.
Wafer thinning, mould inserts and mask structures, periodic gratings. Thickness uniformity and edge integrity are hard acceptance criteria on the line.
Large-aperture mirrors, lightweight structures, precision bearing parts. Under extreme conditions, form and surface quality directly determine imaging and service life.
Intraocular lenses, endoscope optics, precision instruments — the combined demand of small aperture, high steepness and batch consistency.
Optical inserts, rollers, micro-structure masters. Get the master right once and every replica after it saves cost.
Key laboratories in universities and institutes, for process validation and small-batch fabrication of new materials and structures.
Benchmark
Ultra-precision machine tools are an industry defined by a handful of makers for thirty years. The comparison below is compiled from public vendor material and is for selection reference only — we would rather lay out the gaps and the advantages together.
| Supplier | Country | Flagship products | Published characteristics | Typically weighed on selection |
|---|---|---|---|---|
| Precitech（AMETEK） | USA | Nanoform series | One of the industry's definition-makers; sub-nanometre surfaces, deep installed base and application know-how | Ultimate accuracy, mature process packages, global service network |
| Moore Nanotechnology | USA | 350FG / 1500UPL | Strong on freeforms and large apertures; mature on-machine metrology | Large-aperture freeforms, long-term stability |
| Schneider Optical Machines | Germany | UPC series | Modular 2–5 axis platforms, long fast-tool servo travel, on-machine interferometry, machining and inspection in one set-up | One set-up for machining and inspection, modularity |
| Innolite GmbH | Germany | Ultra-precision machining systems | Focused on ultra-precision forming and moulds; in partnership with Rainford Precision since 2025 | Deep customisation for specific processes |
| LT Ultra-Precision | Germany | Ultra-precision turning / milling platforms | German precision-engineering approach, explicit emphasis on structural stiffness and thermal stability | Long-term accuracy retention, structural reliability |
| Kugler GmbH | Germany | Precision machines and specialised modules | Highly specialised, configured per workpiece family | Fit to a dedicated process |
| FANUC | Japan | Ultra-precision machines / automation | Complete control and automation ecosystem, dense global service network | Line integration, maintainability |
| Shibaura Machine | Japan | ULG series (legacy models) | An important early supplier of diamond lathes, now within the Shibaura Machine group | Maintenance and replacement of installed machines |
| Guangbo Technology | China · Shenzhen | GPC12100H / GP1200H / GP13364 | Spindle, guideway, rotary table and complete machine developed in one system; National 863 Program lead contractor | Component-level control, lead time and spares, local process support |
Swipe the table sideways to see the full comparison →
On extreme large-aperture form, decades-deep process databases and global service density, the leading suppliers still hold a clear accumulation advantage. Our strategy is not to claim superiority on those dimensions, but to deliver better lead time, responsiveness and component controllability at equivalent verifiable accuracy, and to put process support in the customer's workshop rather than in a manual.
Sources: vendor websites and public product literature (Precitech, Moore Nanotech, Schneider, Innolite, LT Ultra, Kugler, FANUC, Shibaura Machine). Figures follow each vendor's published text and are shown for selection reference only.
Customer voices
Not the spec sheet — three consecutive months of data on the line.
“Batch drift is what we fear most. Tracking one machine cutting the same germanium lens for three months, PV variation stayed within 0.05 μm — that stability is more persuasive than any nominal figure.”
“Wafer thinning lives in fear of edge roll-off. They engineered the spindle and chuck as one system, and whole-wafer thickness uniformity landed inside our line's acceptance limit.”
“From selection to acceptance they showed up with an interferometer to calibrate against our reference. A supplier willing to lay the inspection open in front of you rarely fudges a number.”
Excerpts from customer interviews; company names and personal details withheld with customer consent.
Credibility
Qualifications, provenance, installed base and acceptance method are all open to third-party review.
Lead contractor of the major project on large-format micro/nano imprint roller technology; core technology derives from that program.
Turning, grinding, laser and lithography, core components, metrology and process services — one complete chain.
Machines and components have served 1,000+ companies in total, with long-term cooperation across 20+ universities and institutes in semiconductors, optics, aerospace and biomedical fields.
In-house pre-acceptance and on-site final acceptance: two data sets, one datum, fully traceable.
Enquiry
Fill in the form below to generate a structured enquiry sheet — copy it and send by WeChat or email, or just call and a process engineer will answer.
Technical Q&A
These answers are also published as structured data for search engines and AI retrieval, so buyers can compare directly.
Capacity depends on model and configuration. Plano and freeform models such as GPC12100H target large flat surfaces with 4-axis simultaneous machining; large IR lenses, mirrors and mould inserts suit the GP1200H series. Confirm the specific aperture against your drawing; the technical agreement governs.
Typical figures are form PV ≤ 0.2 μm (⌀100 mm class) and Ra ≤ 1 nm, varying with material, aperture and process conditions. A measured inspection report ships with the machine, and the acceptance clause in the technical agreement is final.
The leading suppliers are deeper in extreme form accuracy, decades of process data and global service networks. Guangbo Technology's strength is that spindle, guideway, rotary table and machine are developed in one system, so lead time and spares stay controllable and process support sits close to the line; at comparable verifiable accuracy, total cost of ownership and response speed come out ahead.
Yes. Send the drawing, material and acceptance criteria and we schedule a trial cut with a measured form and roughness report. Sampling is the shortest path to knowing whether the machine fits your line, and it is the first step we recommend.
Lead time varies with configuration, process-validation scope and critical-part scheduling. The configuration list is frozen item by item at contract stage and milestones are confirmed in writing. Core components (spindle, guideway, rotary table) usually ship faster than complete machines.
Non-ferrous metals (aluminium, copper, nickel), IR optical materials (monocrystalline germanium, zinc selenide, chalcogenide glass, monocrystalline silicon), polymers (PMMA, resin), artificial crystals, plus grinding of hard-brittle materials such as glass, quartz, ceramics and tungsten carbide.
Yes. Core components go into our own machines and are also sold to machine builders and retrofit projects. The common case is an ageing lathe regaining nanometre capability by replacing its spindle and guideways.
Remote diagnosis first, with 24-hour attendance in the Greater Bay Area; the standing stock covers spindles, encoders, drives and other critical parts. Warranty scope and response times are written into the contract.
Yes. A retrofit usually upgrades the support system (spindle / guideway / rotary table), control system and metrology loop as a whole, then re-runs geometric calibration and process validation with the goal of restoring verifiable accuracy.
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