Granite Right‑Angle Base L‑Shape Component

UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite right‑angle base l‑shape component in China. With abundant experience, we warmly welcome you to buy advanced granite right‑angle base l‑shape component made in China here from our factory. We also accept custom orders.

UNPARALLELED® Granite L‑shaped Right‑Angle Component is fabricated from self‑developed black granite with density of approx. 3100 kg/m³. Its physical properties outperform European and American granite, and we reject substitution with ordinary marble. Precisely lapped in 10 000 ㎡ constant‑temperature‑humidity anti‑vibration workshop, verticality and surface accuracy up to micron level are guaranteed by technicians with over 30‑year hand‑lapping experience. Complying with DIN, ASME, JIS, GB and other international metrology standards, each unit is inspected by imported instruments including Mahr, Mitutoyo, WYLER and Renishaw laser interferometer. All measuring tools are traceable to national metrology institute.

This one‑piece L‑shaped component features two mutually perpendicular working surfaces. Custom threaded holes, counter‑sinks and locating pin holes are available. It serves as vertical reference for equipment assembly, fixture mounting, CMM and precision inspection devices. Featuring low thermal expansion, high rigidity, excellent vibration‑damping, wear resistance and long‑term dimensional stability. Supported by our production capacity and ISO9001, ISO14001, ISO45001, CE certifications, non‑standard sizes are customizable. Widely applied in semiconductor, optics, precision machinery and scientific metrology institutes.

Superior Raw Material Performance Made of UNPARALLELED® black granite with density of approx. 3100 kg/m³. It delivers better physical performance than European and American granite, featuring excellent vibration‑damping, low thermal expansion and high rigidity for long‑term non‑deformation. We firmly reject substitution with ordinary marble.

One‑piece Structure with Reliable Verticality One‑piece lapped construction with two mutually‑perpendicular working surfaces. Processed by veteran technicians with over 30‑year hand‑lapping experience to achieve micron‑level flatness and verticality, complying with international metrology standards as stable vertical reference parts.

Precision‑guaranteed Manufacturing Environment Manufactured in 10 000 ㎡ constant‑temperature‑humidity anti‑vibration workshop equipped with heavy‑duty anti‑vibration floor, vibration‑isolating trenches and silent cranes, avoiding accuracy disturbance caused by external temperature and vibration.

Verification by Complete Imported Testing Equipment Each component is inspected by Mahr, Mitutoyo, WYLER electronic level and Renishaw laser interferometer. All measuring instruments are calibrated by metrology institute and traceable to national metrology institute.

Flexible Customization Custom threaded holes, counter‑sinks, locating pin holes and various non‑standard sizes are available to meet different installation requirements for equipment assembly and fixture mounting.

Reliable Quality Certification UNPARALLELED Group holds ISO9001, ISO14001, ISO45001, CE certifications and more than 20 international trademarks & patents. We supply enterprises, universities and metrology institutes worldwide with stable delivery.

Installation: Place on stable ground, keep away from strong vibration and direct heat. Protect edges during lifting. Granite is brittle; heavy impact or striking on working surface is forbidden.

Maintenance: Keep working surface clean to prevent scratch. Never strike workpieces directly on component surface. Re‑check flatness and verticality periodically.

Note: Edge protection is required during handling. Edge chipping will damage precision.

Scope of delivery: Granite L‑shaped right‑angle component + factory inspection report. Third‑party metrology calibration certificate is optional. Export package: Fumigated reinforced wooden crate with edge protection for sea shipment. Headquartered in Jinan near Qingdao port for worldwide shipment. Supported by our 200 000 ㎡ manufacturing base for mass orders and non‑standard custom orders.

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