UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite linear guide base in China. With abundant experience, we warmly welcome you to buy advanced granite linear guide base made in China here from our factory. We also accept custom orders.
Product Overview
UNPARALLELED Group granite linear-guide mounting base is integrally formed of high-density fine-grain black granite. Adopting dual stress relief treatments of natural aging and thermal aging, it completely eliminates internal structural stress and avoids long-term deformation. The top surface is precisely lapped with dedicated guide mounting reference strips, equipped with pre-embedded stainless steel threaded inserts, enabling direct installation of steel linear guides without additional metal leveling plates, ensuring high benchmark accuracy and excellent fitting performance. Processed in a constant-temperature and dust-free workshop, the product features low thermal expansion, high rigidity and superior vibration damping performance, effectively solving the defects of traditional metal bases such as thermal deformation, stress rebound and vibration offset. Customized non-standard dimensions, reference structures, hole positions and hollow structures are available. It is widely applied in semiconductor inspection, optical visual detection, laser micro-processing and precision automatic linear motion equipment, providing stable and high-precision assembly benchmark support for high-speed and high-frequency reciprocating precision motion systems.
| Material | High‑density fine‑grain black granite |
| Density | 3100 kg/m³ |
| Max processing dimension | fully customisable |
| Inspection standard | DIN, ASME, JIS, GB, CNAS traceable measurement |
| Operating environment | Clean‑room & constant‑temperature precision equipment |
Quality Control
Main Application Fields
As high‑precision mounting substrate for steel linear guides, UNPARALLELED granite linear‑guide mounting base features high rigidity, low deformation and excellent damping performance. It is widely adopted in various precision motion equipment:
Semiconductor inspection equipment: Wafer appearance inspection and chip AOI testing devices, suitable for clean‑room working conditions.
Optical vision inspection equipment: Machine‑vision testing and high‑precision alignment stages to guarantee stable high‑speed reciprocating motion.
Laser processing equipment: Laser micro‑cutting, laser marking and laser direct‑writing machines, reducing processing errors caused by motion jitter.
Precision automation equipment: High‑precision dispensing, perovskite coating and automatic assembly platforms for micron‑level positioning.
Metrology and scientific‑research instruments: Laboratory precision test benches and experimental devices for universities and metrology institutes, delivering stable motion datum.
Daily Maintenance
UNPARALLELED granite linear‑guide mounting base is a high‑precision datum component. Proper maintenance preserves original accuracy over long service life.
Environment requirement: Keep site dry and dust‑free, stay away from acid, alkali and corrosive substances. Avoid direct heat or cold airflow to minimize thermal‑induced accuracy drift. Constant‑temperature clean‑room environment is preferred.
Surface cleaning: Wipe granite reference strips gently with lint‑free cloth dipped in anhydrous ethanol. Do not scratch with hard tools such as steel brushes or blades. Prevent impact on guide‑mounting reference strips to avoid chipping and pits.
Assembly instruction: Tighten bolts cross‑wise with specified torque when installing steel linear guides. Hammering is forbidden to prevent micro‑deformation caused by assembly stress. Do not alter original support positions arbitrarily.
Dust & moisture protection: Cover granite reference surfaces with dust‑proof film during long‑time shutdown. Prevent prolonged liquid retention on granite surface to avoid water‑absorption micro‑deformation.
Periodic inspection: Regularly check insert holes and reference strips for damage, and re‑verify base levelness. In case of accuracy abnormality, do not grind or lap surfaces by yourself; contact the manufacturer for inspection and evaluation.
Handling & storage: Use flexible lifting tools for transportation. Dragging and single‑point loading are prohibited. Store with multi‑point horizontal supports; tilting and stacking are not allowed.
Service
Quality Assurance
UNPARALLELED Group granite linear‑guide mounting bases are fully controlled under ISO quality management system. High‑density fine‑grain black granite raw materials are carefully screened, and blanks with cracks or interlayers are rejected. Raw blanks undergo dual stress‑relief including natural aging and thermal aging to release residual internal stress.
Key machining procedures are completed in constant‑temperature dust‑free workshops. Nano‑precision lapping is applied on guide‑mounting reference strips. Every unit undergoes full dimensional and geometric tolerance inspection with laser interferometer, granite square ruler and high‑precision level meter. Test results are traceable to CNAS‑accredited laboratory and comply with DIN, ASME, JIS and GB international & domestic metrological standards.
Inspection reports are provided upon delivery. Strict packaging and lifting protection prevent stress‑induced deformation during transportation. We offer technical pre‑sales communication, production progress update and original test data release. Technical consultation, assessment and after‑sales support are available for material‑ and process‑related defects under normal operating conditions.
Certificate
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