Precision Granite Machine Components

UNPARALLELED LTD is one of the leading manufacturers and suppliers of precision granite machine components in China. With abundant experience, we warmly welcome you to buy advanced precision granite machine components made in China here from our factory. We also accept custom orders.

Custom Machine Component is made by UNPARALLELED nice black granite. More and more High end precision machines are choosing better material---Granite. UNPARALLELED can manufacture a great variety of granite components according to your drawings for Advanced Precision Machines.

Granite Machine Bed has better physical properties than cast iron, metal, mineral casting and so on.

The very good thermal and vibration-reducing characteristics of granite make it an outstanding material in the area of precision machine construction, e.g. for tool machines, measuring machines, machines for electronics production, optical machines, and measuring and test benches. It is used in the construction of special machines and for parts with simple geometries in mass production.

The raw granite blocks required for ultra-precise manufacture of machine components, measuring tables and panels are initially cut to size with an allowance of a few millimetres. The blocks are then processed on double-column guided grinders to planarity of 5 to 20 μ. Then floor-type milling centres drill the parts for the thread inserts for assembling linear guide rails, drives, measuring systems, and attachment parts. After the trepanned plugs have been broken out, the stainless steel thread inserts are bonded using two-component epoxy resin. Achievable position accuracy is < ± 0.1 mm.

End processing by smooth lapping in fully air-conditioned precision measurement rooms at 20 (± 0.2) °C permits a reproducible planarity tolerance of 1 μm.

On request, UNPARALLELED also handles partial or full assembly to customer specifications.

Using optical and optoelectronic measuring equipment, the manufacture of machine components is examined and documented during processing and assembly.

We supply machine components of up to 12,000 x 5,000 x 1,500 mm (L x W x H).

We guarantee precision of up to 1 µ for our parts. All granite machinery parts are supported by ISO 9001 Certification.

UNPARALLELED, make your precision machine more advanced.

 1 High Quality Natural Granite

Made of high quality Natural Black Granite

High precision and high stability.

No rust and anticorrosion.

Non magnetization.

Good abrasion resistance.

 2 Flatness, Parallelism, Perpendicular & Straightness can reach 1 μm

Our staff will grind every granite componentby hand lapping. UNPARALLELED has the most advanced manufacturing equipment and inspection equipment, and th most strict Quality Control system.

 3 Assembly and Calibration Linear Rails and Ball Screws

UNPARALLELED can help customers to assemble rails and ball screws on precision granite base with high precision. We have Laser interferometer to calibrate the precision.

UNPARALLELED Quarry

Each continent comprises rock which has served for millions of years as a reliable foundation for successful evolution on land. We source our hard stone from our own quarries in Asia and South Africa. Only this way can we guarantee optimum raw material quality. For the past 30 years, founder Jack ZHU has been to practically every quarry on earth. He inspects quarries to see how good their raw material is. A trained eye and plenty of experience are required in order to analyse the geology of a quarry, i.e. the size, volume and quality of the raw material.

In the hard stone quarry, raw blocks are broken from fine-grain granite and processed directly on site as slabs or tranches. This high-quality granite from Lower China to guarantee cost-transparent material flows. This, in turn, contributes over the long term to increasing our productivity and cost efficiency – to the benefit of our customers.

The choice of quarry is decisive for the consistent quality of our machine beds. 15 trucks per week supply us with raw material, whereby each truck bears loads of up to 60 tonnes.

Laser Interferometer

Electric Level

Roughness Meter

Vernier Caliper

Dial Gauge

Inductance Micrometer

1. Who are we?

UNPARALLELED starts 1896, has the most advanced measuring and inspection equipment. We can manufacture a variety of ultra-high precision mechanical components for high-end machines.

2. What material does UNPRALLELED choose?

Black Granite. UNPARALLELED has tested many kinds of granite material in all over the world.

3. Why should you buy from us?

Only UNPARALLELED can offer warranty of 1 year for the precision of each product.

4. We want to purchase one set this time, is this ok?

OK.

5. Does UNPARALLELED offer Authoritative Inspection Report?

UNPARALLELED has the most advanced measuring devices.

UNPARALLELED all measuring equipment have the calibration report.

More information please contact: info@unparalleled-group.com

We develop customized all-in-one systems!

We see ourselves as a comprehensive service-provider and support our customers even ahead of commencement of production.

Leading suppliers in the areas of industrial measurement technology, the optical industry, and machine and plant construction rely on our competence: innovative and customized solutions in granite.

Customers benefit from the extensive experience offered by our mechanical engineers.

In-depth knowledge of the market and industry mean that we are in a position to not only realize machines in components, assemblies or in their entirety, but also implement the entire process for our customers from the idea and solution-finding stage through to commissioning of the finished machine – professionally and independently. Throughout each stage, the focus is always on your application and your requirements.

You determine the degree of service you wish to receive.

In order to guarantee high precision and smooth operation over the entire life cycle, our highly-qualified service staff offer expert technical support. You determine what services you wish to avail of.

We would be delighted to set up / set up on site, including adjustments, alignment and measuring. Subsequent readjustment of the machine is also available at all times. Specific maintenance contracts are developed along with the customer depending on the respective requirements.

As an innovative partner, UNPARALLELED team offers customized complete solutions for industrial measurement technology, the optical industry, and plant and machine construction:

• On receiving an enquiry, we conduct a joint briefing to discuss the plans, application and possibilities.

• Following a feasibility study and cost approval, we draw up technical specifications and construction plans before the requisite parts are ordered by our Purchasing Department.

• Construction is carried out by experienced engineers.

• Mechanical and electric assembly is followed by commissioning and setup at the customer's site.

• The process is rounded off with detailed documentation.

• Service and maintenance contracts go without saying.

We can rework your customer workpieces regardless of the material. Avail of the expertise offered by our design engineers.

We provide these services on request and invoice at cost.

We supply our customers with ready-assembled machine components or complete solutions wherever they are needed. In this process, we largely deploy our own vehicle pool. We deliver 3-9 times a day.

Our own trucks permit flexible & inexpensive delivery.

Ensuring that the goods arrive as they should.

On-site inspection and setup or integration of machine components in existing customer machines saves unnecessary complaints.

Full assembly on site and comprehensive final review by experts at UNPARALLELED engineers.

This logistical support while installing machines represents our added value for you and complies with our UNPARALLELED QUALITY claim.

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