KJ GROUP SYJ-200H Manual High-Speed Precision Cutting Machine
| Brand | KJ GROUP |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | SYJ-200H |
| Instrument Type | Diamond Wafering Saw |
| Speed Range | 100–2000 rpm (infinitely variable) |
| Max Cutting Depth | 47 mm |
| Blade Dimensions | Ø200 mm × Ø25.4 mm or Ø205 mm × Ø32 mm |
| Clamp Jaw Opening | 54 mm × 40 mm |
| Worktable Size | 500 mm × 380 mm |
| Unit Dimensions | 550 mm × 440 mm × 255 mm |
| Weight | 13 kg |
| Power Supply | AC 220 V, 50 Hz |
| Rated Power | 250 W |
| Cooling | Integrated recirculating water reservoir (deionized or purified water recommended) |
| Operating Environment | Altitude ≤1000 m |
| Safety | Overheat-protected motor, polycarbonate blade guard, CE-compliant electrical design |
| Compliance | Meets ISO 12100:2019 (safety of machinery), EN 61000-6-3 (EMC emission), EN 61000-6-2 (EMC immunity) |
Overview
The KJ GROUP SYJ-200H Manual High-Speed Precision Cutting Machine is a compact, benchtop diamond wafering saw engineered for rapid, repeatable sectioning of hard and brittle materials in research laboratories, quality control facilities, and academic sample preparation workflows. It operates on the principle of abrasive cutting using rotating bonded diamond or silicon carbide blades under controlled mechanical feed and continuous coolant lubrication. Unlike automated systems, the SYJ-200H employs manual linear feed—enabling real-time operator feedback and fine-tuned control over cut rate, especially critical when processing heterogeneous or stress-sensitive specimens such as geological thin sections, sintered ceramics, optical crystals, or multilayer PCB substrates. Its high-speed spindle (100–2000 rpm, infinitely variable) ensures optimal material removal rates across diverse hardness ranges while minimizing thermal damage and microcracking. The integrated recirculating water reservoir supports extended operation with minimal fluid consumption—reducing maintenance overhead and aligning with lab sustainability goals.
Key Features
- Infinitely variable spindle speed (100–2000 rpm) for precise optimization against material hardness, brittleness, and blade type—including sintered diamond, electroplated diamond, and resin-bonded SiC or alumina blades.
- Robust yet lightweight chassis constructed from high-grade molded polymer housing—resistant to water ingress, chemical splashes, and mechanical abrasion—ensuring long-term durability in humid or corrosive lab environments.
- Integrated recirculating cooling system with transparent water reservoir; compatible with deionized or purified water to prevent scale buildup and protect precision components including lead screws and linear guides.
- Stable, low-profile worktable (500 mm × 380 mm) with precision-machined T-slots and dual-axis adjustable clamping fixture (54 mm × 40 mm jaw opening) for secure, orthogonal positioning of irregular or fragile samples.
- Thermal overload protection circuitry in the 250 W induction motor safeguards against sustained stall conditions during heavy-duty cutting cycles.
- Comprehensive safety package includes polycarbonate blade guard, ergonomic handwheel feed mechanism, and ANSI/EN-compliant eye protection (included).
Sample Compatibility & Compliance
The SYJ-200H accommodates a broad spectrum of rigid and semi-rigid materials commonly encountered in materials science, geology, electronics, and metallurgy labs—including single-crystal quartz and sapphire, hot-pressed boron nitride, fused silica optics, granite and basalt rock cores, FR-4 and polyimide PCB laminates, aluminum alloys, stainless steel coupons, carbon fiber composites, and thermoset polymers. All cutting protocols are designed to comply with ASTM E3-22 (Standard Guide for Preparation of Metallographic Specimens) and ISO 14577-1:2022 (Metallic materials — Instrumented indentation test). While not GMP-certified out-of-the-box, the machine’s traceable mechanical design, consistent feed geometry, and documented maintenance intervals support integration into GLP-aligned workflows. Optional accessories—including geological thin-section夹具 and calibrated depth-stop kits—enable reproducible thickness control per USP and ISO 643:2019 requirements.
Software & Data Management
As a manually operated mechanical system, the SYJ-200H does not incorporate embedded firmware, touchscreen interface, or digital data logging. Its operational integrity relies on mechanical repeatability, tactile feedback, and user-defined procedural documentation. However, its design facilitates full auditability: all adjustments (speed setting, clamp position, feed stroke length) are mechanically indexed and physically recordable in laboratory notebooks or LIMS-integrated SOPs. For labs requiring electronic traceability, the unit may be paired with external metrology tools (e.g., digital calipers with Bluetooth output) or video-assisted alignment rigs compliant with FDA 21 CFR Part 11 when used in regulated pharmaceutical or medical device sample prep.
Applications
- Preparation of cross-sectional slices for SEM/EDS analysis of layered battery electrodes or thermal barrier coatings.
- Rapid trimming of ceramic green bodies prior to sintering, minimizing post-firing machining time.
- Sectioning of geological core samples for petrographic microscopy and micro-CT scanning.
- Cutting of semiconductor wafers and optoelectronic substrates where chipping minimization is critical.
- Dimensional reduction of metallographic specimens for subsequent mounting, grinding, and polishing per ASTM E3-22.
- Prototyping of composite laminate coupons for tensile, flexural, and interlaminar shear testing (ASTM D3039, D7264, D2344).
FAQ
What types of cutting blades are compatible with the SYJ-200H?
The SYJ-200H accepts standard Ø200 mm × Ø25.4 mm arbor blades and Ø205 mm × Ø32 mm blades. Recommended options include sintered diamond, electroplated diamond, silicon carbide (SiC), and aluminum oxide (alumina) wheels—each selected based on material hardness and desired surface finish.
Is coolant circulation mandatory during operation?
Yes. Continuous coolant flow is required to dissipate frictional heat, suppress dust generation, and extend blade life. The built-in reservoir supports recirculation; use only deionized or purified water to avoid mineral deposition on internal components.
Can this unit be integrated into an ISO 17025-accredited testing lab?
Yes—provided documented calibration of mechanical adjustments (e.g., depth gauge, speed dial accuracy), preventive maintenance logs, and operator competency records are maintained per ISO/IEC 17025:2017 Clause 6.4.1 and 6.5.
What is the warranty coverage and technical support policy?
KJ GROUP provides a 12-month limited warranty covering defects in materials and workmanship. Lifetime technical support—including troubleshooting guidance, spare parts sourcing, and application-specific protocol recommendations—is available directly through authorized regional distributors.
Does the SYJ-200H meet CE marking requirements?
Yes. The unit conforms to the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU, verified via third-party notified body assessment and documented in the Declaration of Conformity supplied with each unit.
