ShaftsRuler Axis
Precision ground shaft used as a linear measuring and guiding element, with controlled straightness over full length.
- Tolerance
- Ø IT6, ±0.005 mm
- Materials
- GCr15, 40Cr, 45#, SUS304
- Surface
- Hard chrome plating
Thin-wall aluminum alloy housing for forehead thermometers, milled from billet and anodized with a clean sensor window.
Values below are the standard range keytrond holds for this part family. Tighter requirements are reviewed against the drawing before quotation.
| Tolerance range | IT7 - IT8, wall thickness ±0.05 mm |
|---|---|
| Surface roughness | Ra 1.6 |
| Common materials | 6061-T6, 6063, 7075-T6 |
| Surface treatment | Anodizing, Hard anodizing, Bead blasting |
| Machining processes | CNC Milling, CNC Turning, Surface Finishing |
| Max machining size | 200 × 150 × 60 mm |
| Applicable industries | Medical Equipment |
| Minimum order | 10 pcs for sample, 500 pcs for batch |
| Lead time | Sample 5-7 days, batch 10-15 days |
| Drawing requirement | Please mark wall thickness, window and bore tolerance, anodizing colour and film thickness. |
The forehead thermometer housing holds the sensor, display and battery in a handheld body, so the shell must be light, stiff and clean to the touch. Aluminum alloy is chosen for these covers because it machines to a thin wall and anodizes to a durable finish.
The housing is milled from 6061-T6 billet. The cavity is roughened first, the part is released and left to relax, then the window, bores and sealing faces are finished in the last setup. After deburring and cleaning, the housing is anodized in the requested colour, and each unit is checked for wall thickness and window position.
| Inspection item | Method and instrument |
|---|---|
| Wall thickness | Ultrasonic gauge at six points |
| Window and bore position | Coordinate measuring machine |
| Coating thickness | Film thickness gauge, 10-15 μm |
| Appearance | Visual check under 800 lux, no scratch |
A first article inspection report with dimensional results, material certificate and heat treatment record is provided for sample orders. Batch orders are sampled at 10 percent, with full inspection available on request.
ShaftsPrecision ground shaft used as a linear measuring and guiding element, with controlled straightness over full length.
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