english
Place of Origin:
China
Brand Name:
SINTEK
Model Number:
STK-90CN
Document:
The 90NC Semi-Automatic Circular Saw Machine is designed for precision cutting of metal bars and profiles in industrial manufacturing. It combines a servo-driven feeding system, rigid cutting structure, hydraulic clamping, and a carbide-tipped circular saw blade to support consistent cutting operations.
The machine uses a horizontal blade-feeding mechanism driven by a servo motor and precision ball screw. This arrangement provides controlled movement during cutting and helps maintain stable contact between the saw blade and the workpiece.
Its enclosed cutting area, programmable control system, automatic lubrication, and chip removal equipment support repeated cutting operations in production environments.
The 90NC circular saw is suitable for manufacturers processing steel bars and compatible metal profiles for automotive parts, machinery components, hydraulic equipment, and general metal fabrication.
The cutting head uses a servo motor, precision ball screw, and rigid linear guides to control blade movement. Compared with uncontrolled manual feeding, the programmed feed arrangement allows cutting movement to be adjusted according to the workpiece and machining requirements.
The machine incorporates horizontal and vertical hydraulic clamping to secure the workpiece during cutting. The clamping arrangement helps limit material movement and vibration. Clamping settings should be matched to the workpiece dimensions and material properties.
The main machine base uses HT250 cast iron with heat treatment and aging processes intended to improve structural stability. A rigid machine structure helps support the gearbox, spindle, clamping system, and cutting mechanism during repeated operations.
The feeding mechanism combines an AC servo motor with a precision ball screw. The specified single-feed length is 30–850 mm. Longer workpieces can be processed through repeated feeding cycles within the machine's configured operating limits.
A spray lubrication system applies cutting fluid to the saw blade during operation. Controlled lubrication helps manage cutting heat, reduce friction, and protect the blade and workpiece surfaces.
A chain-type chip conveyor removes metal chips from the cutting area. This helps reduce chip accumulation around the cutting mechanism and supports routine cleaning and maintenance.
| Parameter | Specification |
|---|---|
| Model | 90NC |
| Machine Type | Semi-Automatic Metal Cutting Circular Saw |
| Saw Blade Type | TCT Circular Saw Blade |
| Saw Blade Dimensions | Ø315 * 2.2 mm |
| Saw Blade Speed | 30–168 rpm |
| Main Motor Power | 7.5 kW |
| Cutting Feed Drive | AC Servo Motor and Precision Ball Screw |
| Cutting Feed Motor Power | 1 kW |
| Material Feeding Drive | AC Servo Motor and Precision Ball Screw |
| Material Feeding Motor Power | 1 kW |
| Single Feeding Length | 30–850 mm |
| Feeding Position Accuracy | ±0.05 mm |
| Specified Cut Length Tolerance | ±0.20 mm |
| Specified Cutting Squareness | ≤0.25 mm per 100 mm |
| Workpiece Clamping | Hydraulic Horizontal and Vertical Clamping |
| Cutting Feed Mechanism | Horizontal Linear Feed |
| Hydraulic System Pressure | 6 MPa |
| Hydraulic Tank Capacity | 60 L |
| Cooling System | Spray Lubrication |
| Chip Removal | Automatic Chain-Type Conveyor |
| Rated Power Supply | 380 V, 3-Phase, 50 Hz |
| Compressed Air Requirement | 4–6 bar |
| Supported Stock Length on Loading Rack | 4,000–8,000 mm |
| Machine Weight | Approximately 2,800 kg |
| Loading Rack Weight | Approximately 780 kg |
Specifications are based on the 90NC technical document. The stated cutting tolerances are specification targets under defined conditions, not a guarantee for every material or workpiece. Maximum cutting diameter and feeding speed require confirmation before publication.
The 90NC metal cutting circular saw can prepare bar stock for automotive component manufacturing. Potential applications include cutting raw materials for shafts, pins, bushings, connectors, and other machined components.
Metal bars and profiles are frequently cut into shorter blanks before turning, drilling, milling, or other machining operations. The circular saw can serve as a material preparation machine for these production processes.
Manufacturers of hydraulic and pneumatic equipment use precision-cut metal blanks for fittings, valve components, and mechanical assemblies. Material compatibility and cutting capacity should be verified against the component requirements.
The machine can support batch cutting of compatible round bars and square profiles for industrial fabrication. Its programmed feeding and clamping functions are useful where multiple workpieces require consistent nominal cut lengths.
Cutting quality depends on the condition of the saw blade, workpiece material, blade speed, feed settings, and clamping stability. For production applications, operators should inspect cut length, end-face squareness, burr formation, and surface condition.
The machine's servo-controlled feeding system supports repeatable positioning, but finished-part accuracy should be verified through sample cutting tests. Suitable cutting parameters should be established for each material grade and workpiece size.
Routine maintenance should include checking the saw blade condition, gearbox lubrication, hydraulic pressure, clamping surfaces, and chip conveyor. The machine includes lubrication-related and hydraulic-pressure monitoring functions described in the technical documentation.
Operators should also inspect the cooling system and remove accumulated chips according to the maintenance schedule. Correct blade selection and regular inspection are important for maintaining cutting performance.
The 90NC is used to cut compatible metal bars and profiles into specified lengths for machining, automotive parts production, hydraulic components, and industrial fabrication.
The specified configuration uses a 315 mm diameter TCT circular saw blade with a 2.2 mm blade thickness.
Material compatibility depends on the workpiece dimensions, strength, hardness, blade selection, and cutting settings. Sample cutting is recommended before production.
Yes. The documented configuration includes servo-driven material feeding. The loading arrangement and degree of automation should be confirmed for the supplied machine.
Buyers should provide the material grade, cross-section dimensions, required cut length, dimensional tolerance, and production volume. These details help determine whether the machine and its tooling are suitable.
The 90NC Semi-Automatic Circular Saw Machine is intended for industrial metal cutting operations where controlled feeding, rigid clamping, and repeatable cutting are required. Before equipment selection, confirm the maximum cutting capacity and conduct cutting trials using representative production materials.
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