ZHHIMG® Precision Granite Straight Edge for Machine Alignment and Metrology

Short Description:

When machine alignment, guideway installation, or geometric inspection demands a reliable reference, the quality of the measuring tool matters. The ZHHIMG® Precision Granite Straight Edge is a precision-engineered granite reference tool designed for straightness inspection, machine alignment, equipment assembly, and industrial metrology.


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Quality Control

Certificates & Patents

ABOUT US

CASE

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Key Features of the ZHHIMG® Granite Straight Edge

1. High-Density Black Granite Construction

The straight edge is manufactured from ZHHIMG® black granite, selected for precision engineering applications. The material offers a combination of rigidity, wear resistance, corrosion resistance, and favorable dimensional stability.

ZHHIMG® black granite has a nominal density of approximately 3,100 kg/m³, based on the company's stated material specifications. Actual material properties should be confirmed against the grade and documentation applicable to the ordered product.

2. Precision-Finished Reference Surfaces

Reference surfaces are finished according to the requirements of the intended application. The specified straightness, flatness, parallelism, and squareness should be agreed upon during technical review and verified against the applicable inspection criteria.

For equipment manufacturers, clearly defined reference geometry helps establish a dependable basis for alignment and assembly.

3. Custom Machined Holes and Mounting Features

As shown in the product image, the granite body incorporates multiple holes on the top and side surfaces. These features can be designed around the customer's mounting arrangement, fixture requirements, and machine interface.

Hole positions, diameters, depths, threaded inserts, and installation clearances should be confirmed using approved engineering drawings before production.

4. Corrosion-Resistant and Non-Magnetic Material

Granite does not rust like untreated steel and is non-magnetic. These properties can be useful in metrology laboratories and precision manufacturing environments where corrosion control or magnetic interference is a consideration.

Appropriate handling and cleaning procedures are still necessary to protect the reference surfaces from contamination, impact, and accidental damage.

5. Custom Manufacturing for Industrial Applications

ZHHIMG® supports precision granite components manufactured to customer drawings. Depending on the design and required inspection scope, the straight edge can be specified for particular lengths, cross-sections, mounting features, reference faces, and dimensional tolerances.

Our engineering team can review your application requirements before confirming manufacturability, inspection criteria, and quotation details.

Overview

Model

Details

Model

Details

Size

Custom

Application

CNC, Laser, CMM...

Condition

New

After-sales Service

Online supports, Onsite supports

Origin

Jinan City

Material

Black Granite

Color

Black / Grade 1

Brand

ZHHIMG

Precision

0.001mm

Weight

≈3.05g/cm3

Standard

DIN/ GB/ JIS...

Warranty

1year

Packing

Export Plywood CASE

After Warranty Service

Video technical support, Online support, Spare parts, Field mai

Payment

T/T, L/C...

Certificates

Inspection Reports/ Quality Certificate

Keyword

Granite Machine Base; Granite Mechanical Components; Granite Machine Parts; Precision Granite

Certification

CE, GS, ISO, SGS, TUV...

Delivery

EXW; FOB; CIF; CFR; DDU; CPT...

Drawings’ format

CAD; STEP; PDF...

Applications of Precision Granite Straight Edges

Machine Tool Alignment

During machine installation and maintenance, a precision granite straight edge can serve as a reference for checking the straightness of guideways, mounting surfaces, and selected structural features. A suitable measurement method and instrument are required to obtain meaningful results.

Linear Guideway and Motion System Assembly

Precision motion systems rely on correctly aligned mounting interfaces. A granite straight edge can support alignment and inspection work during the installation of linear guides and related mechanical structures, subject to the geometry and accuracy required.

CMM and Metrology Equipment

Coordinate measuring machines and other metrology systems require careful geometric alignment during installation, assembly, and maintenance. A granite straight edge can provide a reference for selected straightness and alignment checks when used with an appropriate inspection procedure.

Precision Equipment Manufacturing

OEMs building optical inspection systems, CNC equipment, precision stages, and automated machinery can use granite reference tools during assembly and quality control.

Industrial Inspection and Quality Control

In inspection departments and engineering workshops, a granite straight edge can help identify deviations along a reference line or surface. Measurement results depend on the instrument, contact method, support arrangement, temperature, and calibration status of the measuring system.

Quality Control

We use various techniques during this process:

●  Optical measurements with autocollimators

●  Laser interferometers and laser trackers

●  Electronic inclination levels (precision spirit levels)

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Quality Control

1. Documents together with products: Inspection reports + Calibration reports(measuring devices) + Quality Certificate + Invoice + Packing List + Contract + Bill of Lading(or AWB).

2. Special Export Plywood Case: Export fumigation-free wooden box.

3. Delivery:

Ship

Qingdao port

Shenzhen port

TianJin port

Shanghai port

...

Train

XiAn Station

Zhengzhou Station

Qingdao

...

 

Air

Qingdao Airport

Beijing Airport

Shanghai Airport

Guangzhou

...

Express

DHL

TNT

Fedex

UPS

...

Delivery

FAQ

1. What is a precision granite straight edge used for?

A precision granite straight edge is used as a reference tool for straightness inspection, machine alignment, equipment assembly, and selected geometric checks in metrology and precision manufacturing.

2. Why use granite instead of steel?

Granite is non-magnetic, does not rust like steel, and offers useful dimensional stability for precision reference applications. The suitability of granite or metal depends on the required accuracy, environmental conditions, impact exposure, and inspection method.

3. Can ZHHIMG® manufacture a custom granite straight edge?

Yes. ZHHIMG® accepts inquiries for custom precision granite components. Please provide a drawing with the required dimensions, reference faces, mounting features, and geometric tolerances so that manufacturability can be reviewed.

4. What accuracy can a granite straight edge achieve?

The achievable straightness and other geometric tolerances depend on the component's dimensions, material, manufacturing process, reference-face configuration, and inspection method. Please provide your required tolerance so that the engineering team can assess the appropriate specification.

5. Can the granite straight edge include threaded holes or metal inserts?

Custom holes and inserts may be possible, depending on the design and required tolerances. Hole locations, thread specifications, edge distances, and mounting loads should be reviewed against the engineering drawing.

6. Does the product come with an inspection report?

Inspection documentation can be discussed according to the product specification and purchase requirements. Please identify the parameters that must be measured and whether a particular standard or certificate is required.

7. How should a granite straight edge be handled and maintained?

Keep the reference surfaces clean and free from abrasive particles. Avoid impact, twisting, and unsupported loading. Use the specified support arrangement and suitable lifting equipment for heavy components. Establish an inspection or recalibration schedule based on usage, measurement risk, and your quality management requirements.

8. How can I request a quotation?

Send your drawing, required dimensions, accuracy requirements, quantity, and application information through the ZHHIMG® website. Our team can review the information and clarify any technical details needed for a quotation.


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