アルク生技研 Product Lineup

The "Sarabane Chuck" is a chuck designed for high-precision gripping of large workpieces in turning and grinding operations. By applying axial force to components with slits in the sarabane, the outer diameter expands uniformly, allowing for stable processing as both the gripping force and the retracting force work simultaneously. Additionally, during chucking, there is no radial clearance, similar to a collet chuck, which enhances runout accuracy and repeatability. 【Features】 ■ Runout accuracy of 0.003mm or less at φ150mm ■ Low-cost structure that allows for easy chucking of large diameters ■ Capable of chucking thin-walled workpieces close to true roundness ■ Compatible with collaboration with robots ■ Customizable design and manufacturing to match the workpiece *For more details, please refer to the PDF document or feel free to contact us.

• Processing Jig

Alku Seigiken supports customers' mass production machining by focusing on high-precision jigs for machining centers, as well as designing and manufacturing jigs for aircraft engine parts, jigs for NC lathes, and precision measuring instruments and gauges. We also handle the processing of precision parts from one to over one hundred pieces, along with assembly and inspection services.

• Inspection fixture
• Processing Jig

The jack double screw support (DN support) prevents vibrations during work processing and can be easily locked at the position where it contacts the workpiece. Conventional screw lock-type supports adjust by tightening the lock nut against the tip of the screw that contacts the underside of the workpiece, but tightening the nut causes the support shaft to rise, lifting the workpiece. The DN support utilizes the pitch difference of the double screws to prevent lifting and provide accurate support by tightening the nut.

• Other work tools

The conventional screw-lock type support adjusts by tightening the lock nut against the underside of the workpiece with the screw tip, but when the nut is tightened, the support shaft rises and lifts the workpiece. The JP support tightens the nut from below, allowing for precise support simply by lightly touching the tip of the support shaft to the workpiece and turning the lever.

• Other work tools

Please attach this machine to the machining tool for processing. It can create high-precision square holes in a short time. The main body and the cutter are connected by a special bearing, allowing one side to rotate, which causes the centerline of the cutter to perform a conical rolling motion and move forward, resulting in smooth processing without vibration. It is suitable for processing socket bolts, special bolts, or shafts with wrench-type square holes, as well as spline processing for universal joints and square hole processing for boring shafts.

• Other work tools

Please attach this machine to a machining tool for processing. It can create high-precision square holes in a short time. The main body and cutter are connected by a special bearing, allowing one side to rotate, which causes the centerline of the cutter to perform a conical rolling motion and move forward, enabling smooth processing without vibration. It is suitable for processing socket bolts, special bolts, or shafts with wrench-type square holes, as well as spline processing for universal joints and square hole processing for boring shafts.

• Other work tools

The "Socket Tool No. 2 Series" is a specialized tool for processing square holes with high precision in a short time. The main body and cutter are connected by a special bearing, and as one side rotates, the center line of the cutter performs a conical rolling motion, allowing for smooth processing without vibration. It is suitable for applications such as processing socket bolts, special bolts, or creating square holes for wrenches on shafts. 【Features】 ■ Capable of high-precision square hole processing in a short time ■ Smooth operation without vibration *For more details, please download the PDF or feel free to contact us.

• Power tools
• Other work tools