56mm SIR S50U Drill Bar For 22 IR Indexable Inserts, Right Hand, 350mm Overall Length - Teknik Makina

Take advantage of a rigid, production-ready solution that combines stable clamping with quick insert compatibility; the robust shank and precise insert seat reduce downtime and maintain machining quality. Order directly via Metav Werkzeuge or consult the specialists for application advice.

SIR S50U boring bar — SIR for IR indexable inserts by Teknik Cutting Tools

The SIR S50U is a right-hand boring bar designed for heavy-duty turning with IR-compatible indexable inserts, optimised for stable clamping and consistent chip control

• SIR system for IR indexable inserts
• Shank Ø50 mm for rigid clamping
• Compatible with 22 IR inserts
• Overall length 350 mm, diameter 56 mm

High rigidity for consistent machining

The boring bar is engineered to keep vibration low and form tolerances tight in serial production. With a shank Ø50 mm, large cross-section and a diameter of 56 mm, the holder minimises deflection under cutting forces, which directly improves surface finish and reduces rework. Specified cutting geometry and the right-hand orientation mean predictable chip flow and repeatable results across workpieces.

Fast, reliable insert changes to shorten cycle time

Compatibility with 22 IR indexable inserts and the SIR clamping concept ensures secure seat engagement and rapid replacement. The clamping uses a Torx fastener system (Torx T15 with M4x15 screw) for reliable torque transmission, which reduces time at the machine and keeps changeover consistent on the shop floor. Clear interface features such as the U-plate TA063 and reference ring BSP010 support rapid set-ups and predictable positioning.

Designed for production use and toolroom safety

An overall length of 350 mm and a cutting height of 75 mm provide the reach required for medium-depth boring while retaining stiffness. The tool's mass (approx. 5.335 kg) contributes to damping during heavy cuts and stabilises the toolholder under variable loads. The ISO designation SIR S50U signals an industry-standard interface, facilitating inventory management and tool planning in CNC operations.

Practical integration into machining systems

The bar is supplied ready for assembly with the appropriate clamping interface for IR22 holders and works with commonly stocked indexable inserts, reducing procurement complexity. The standardised fasteners and locating features allow maintenance teams to replace consumables using conventional hand tools, improving uptime without specialised equipment. Specification clarity aids production planning and tool-life estimation.

For a stable turning solution from Teknik Cutting Tools, ask Metav Werkzeuge for tailored recommendations and delivery from their Emmerich hub: info@metav-werkzeuge.com • +49 2822 7131930

Technical Data

• Article number: K346TM
• Model name: SIR S50U
• Product type: Boring bar / SIR for IR indexable inserts
• Manufacturer: Teknik Cutting Tools

Core dimensions

• Shank diameter: 50 mm
• Overall diameter: 56 mm
• Cutting height: 75 mm
• Overall length: 350 mm
• Weight: 5.335 kg

Compatibility & features

• Cutting direction: right-hand
• For indexable inserts: 22 IR
• Clamping system: SIR for IR inserts
• Clamping holder designation: IR22
• U-plate: TA063
• Pass ring: BSP010
• Torx key: T15
• Torx screw: M4x15

FAQ

What insert type fits this boring bar?
The SIR S50U accepts 22 IR indexable inserts and is configured for the SIR clamping interface to ensure correct seating and secure fixation.

Is the bar suitable for heavy-duty turning?
Yes; with a shank Ø50 mm, 56 mm diameter and a weight of 5.335 kg, the bar is intended to provide increased rigidity for heavier cuts and better vibration damping.

How is the insert secured in the clamping seat?
Insert retention is achieved via the SIR clamping system using a Torx T15 fastener and M4x15 screw, delivering consistent torque and reliable fixation.

Can the bar be used on standard CNC turret toolposts?
The ISO designation SIR S50U and standardised interface make the bar compatible with typical toolholding systems that accept IR22-style clamping holders.

Manufacturer: Teknik Cutting Tools, Buyukkayacık OSB Mah.422 Nolu Sokak.No:9, Selcuklu/KONYA/TURKEY / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; eMail: info@metav-werkzeuge.com