KTTM Ring Frame Spindle Bolster
For KTTM ring-frame spindle positions.
KTTM Spindle Bolster & Complete Spindle Options
Vindex Industries supplies the selected KTTM spindle bolster and, when ordered, the complete aluminum plug / duralumin sleeve spindle assembly. Blade, plug, tube and wharve specifications below apply to the complete assembly; the bolster-only supply is defined separately in the quotation.
Technical Specifications & Parameters
| Parameter | Technical Specification |
|---|---|
| Spindle type | Aluminum plug / duralumin sleeve construction |
| Tube fitting | Spring-loaded inner grip or centrifugal button grippers, according to design |
| Tube lengths | 160 / 170 / 180 / 190 / 200 / 210 / 220 / 230 mm; custom configuration within 160-250 mm |
| Wharve diameter (Dw) | 18.5 / 19.0 / 20.2 / 22.0 mm; CNC precision turned |
| Ring diameters | 38 / 40 / 42 / 45 / 48 mm; custom profiles by drawing |
| Insert / bolster references | HF 100 / HF 1 / HF 21 / CS 1 / CS 21 / HZ 33 |
| Spindle blade | EN 31 / SAE 52100 / 100Cr6 grade references; specified surface-hardness target 58-62 HRC. Material standard and heat treatment per drawing |
| Standard plug material | HE30-T6 / AA 6082-T6 for series up to 22,000 rpm |
| Premium plug material | HE15 / AA 2014-T6 Duralumin for the 25,000+ rpm series |
| Operating speed | Standard: up to 22,000 rpm. Premium: 25,000+ rpm series with the specified HF 100 assembly; exact maximum rated speed confirmed per configuration |
| Vibration velocity | Customer specification target: <= 0.05 mm/s, under agreed measurement conditions |
| Dynamic balancing | Requested balance grades G 0.4 / G 1.0; test speed, rotor configuration and applicable ISO reference agreed for the assembly |
| Operational noise | Customer specification target: <= 75 dBA; operating speed, load, measurement distance and background noise to be defined |
| Supply scope | Blade, wharve, aluminum plug, bolster insert, mounting flange, nut and spindle lock, as ordered |
Machine Makes & Model References
KTTM / Toyoda RX models: the primary machine references for this page. Other brands describe separate configurations in the wider Vindex spindle range, not confirmed fitment of this KTTM bolster.
| Machine Make / Type | Model References |
|---|---|
| Toyoda / KTTM ring frames | KTTM RX 100, KTTM RX 200, KTTM RX 240, KTTM RX 300, KTTM RXI |
Process types
- Cotton: carded, combed and compact ring spinning
- Man-made fibres: polyester, viscose, acrylic and suitable spun-nylon applications
- Blends: polyester/cotton, polyester/viscose and selected wool / worsted blends
Product description
KTTM — Kirloskar Toyoda Textile Machinery — brought Japanese Toyoda engineering into Indian mill conditions, and its RX series ring frames earned a loyal following among spinners who wanted that precision at Indian operating costs. Those frames are now mature installations, and their owners think carefully about every replacement part that goes into them. Vindex Industries manufactures replacement spindle bolsters for KTTM RX series positions at our Surendranagar works, where we have made textile machinery spares since 1985. We build the bolster around a hardened bearing-steel insert with the footstep geometry and oil system suited to RX frame duty — steady running across long shifts, straightforward servicing by the mill's own maintenance team. Because RX models differ in spindle specification across the series, we confirm fitment against your exact model and, where there is any doubt, a sample or drawing before we quote. One confirmation up front saves a mill the cost of a bolster that almost fits.
Application
Ring and compact spinning with the specified tube and drafting / winding configuration. Filament twisting requires its own machine-specific spindle selection.
Key Features & Metallurgy
- Bearing-steel blade with specified heat treatment
- HE30-T6 standard and HE15 / 2014-T6 premium plug options
- Hard-anodised finish where specified
- Dynamic balancing and controlled working dimensions
Advantages
- Lightweight top-part design to reduce rotating mass
- Small-wharve options for matching the tape drive and operating duty; energy savings require a comparative mill test
- Lubrication interval selected for the insert, lubricant and service conditions
- Multi-stage dimensional, hardness, runout and balancing checks as agreed in the inspection plan
Export markets
Vindex Industries manufactures this product in Surendranagar, Gujarat, and exports textile machinery spares to 87 countries — including Bangladesh, Vietnam, Turkey, Indonesia, Pakistan, Egypt, Uzbekistan, Brazil, Mexico and Thailand. Request an export quote.