SCARFING INSERT_SNMX 1507-R
Caution
Product Description
Pramet SNMX 1507-R scarfing inserts from Dormer Pramet are square, negative, double-sided inserts for removing the external weld bead from welded steel and stainless steel tubes and pipes. Made in MT-CVD coated carbide grade 6640, the series covers working radii from 9 mm to 105 mm; SNMX 150708-R09:6640 has a 9 mm radius for tube outside diameters of 13-16 mm.
General information
- Manufacturer: Dormer Pramet (Pramet brand)
- EDP number of SNMX 150708-R09:6640: 7817078
- Packing unit: 10 inserts per pack
- Operation: external scarfing (removal of the weld bead from the tube outside diameter)
- Workpiece materials: steel (ISO P) and stainless steel (ISO M)
Compatible holders and parts
- Holders: PXFNR/L 2525 R 15 and PXFNR/L 2525 R 15/15, 25 x 25 mm shank
- Shim: SNU 150410-CX, which allows the concave-top SNMX 1507 insert to be clamped in these holders
- Further spare parts listed by the manufacturer for this insert group: PU 03, US 36, MT 07, HXK 4
Ordering code
- S: square insert shape
- N: 0° clearance angle
- X: special insert type
- 15: insert size
- 07: insert thickness code
- R09: working radius 9 mm
- 6640: carbide grade
Usage notes
- Select the code whose tube outside diameter range includes the actual tube diameter.
- Always fit the SNU 150410-CX shim when using SNMX 1507 inserts in PXFN(RL) holders.
- When an edge is worn, index the insert to a fresh edge, then turn it over to use the cutting edges on the second face.
- Scarfing chips are hot and sharp; wear safety glasses and gloves when changing inserts.
The Pramet SNMX 1507-R series by Dormer Pramet is a range of square, negative, double-sided scarfing inserts for removing the weld bead from the outside diameter of welded tubes and pipes on tube mills. The main cutting edge has a concave profile whose working radius is matched to the tube outside diameter, so the bead is removed following the tube contour.
The inserts are made in grade 6640, an MT-CVD coated WC-Co carbide for the ISO P20-P40 and M20-M35 application ranges, and are offered in working radii from R09 to R105 for tube outside diameters from 13 mm to 195 mm.
Key features
- Negative, double-sided insert with 8 cutting edges and a concave top face
- Accurate cutting edge for a high quality tube surface finish
- Very good thermal and chipping resistance for long tool life
- Stable clamping that eliminates insert vibration
- Fits Pramet PXFN(RL) external scarfing holders using shim SNU 150410-CX
Applications
- External weld bead scarfing on tube and pipe mills
- Welded tubes and pipes in steel (ISO P) and stainless steel (ISO M)
| Item | Specification |
|---|---|
| Insert design | SNMX 1507-R |
| Insert shape | S - square |
| Clearance | N 0° (negative) |
| Construction | Double-sided, 8 cutting edges, concave top |
| Cutting edge length (L) | 15.875 mm |
| Inscribed circle (IC) | 15.875 mm |
| Thickness (S) | 7.75 mm |
| Fixing hole diameter (D1) | 5.16 mm |
| Grade | 6640 |
| Substrate and coating | WC-Co carbide, MT-CVD coated |
| Colour | Gold |
| ISO application range | P20-P40, M20-M35 |
| Working radius range (series) | 9-105 mm |
| Tube outside diameter range (series) | 13-195 mm |
| SNMX 150708-R09:6640 | Working radius 9 mm, tube outside diameter 13-16 mm |
| Ordering code | Working radius PFRAD (mm) | Tube outside diameter ODW (mm) |
|---|---|---|
| SNMX 150708-R09:6640 | 9 | 13-16 |
| SNMX 150708-R11:6640 | 11 | 16-19 |
| SNMX 150708-R13:6640 | 13 | 19-23 |
| SNMX 150708-R15:6640 | 15 | 22-27 |
| SNMX 150708-R18:6640 | 18 | 26-32 |
| SNMX 150708-R20:6640 | 20 | 29-36 |
| SNMX 150708-R22:6640 | 22 | 32-39 |
| SNMX 150708-R25:6640 | 25 | 37-45 |
| SNMX 150708-R27:6640 | 27 | 39-48 |
| SNMX 150708-R30:6640 | 30 | 44-54 |
| SNMX 150708-R35:6640 | 35 | 51-63 |
| SNMX 150708-R40:6640 | 40 | 58-72 |
| SNMX 150708-R42:6640 | 42 | 61-75 |
| SNMX 150708-R45:6640 | 45 | 66-81 |
| SNMX 150708-R50:6640 | 50 | 73-93 |
| SNMX 150708-R60:6640 | 60 | 88-111 |
| SNMX 150708-R65:6640 | 65 | 95-120 |
| SNMX 150708-R70:6640 | 70 | 102-130 |
| SNMX 150708-R75:6640 | 75 | 110-139 |
| SNMX 150708-R80:6640 | 80 | 117-148 |
| SNMX 150708-R90:6640 | 90 | 131-167 |
| SNMX 150708-R100:6640 | 100 | 146-186 |
| SNMX 150708-R105:6640 | 105 | 153-195 |
Square (S) negative insert with 0° clearance (N) and a fixing hole through the centre. Both faces carry cutting edges (8 in total) and the top face is concave. The main cutting edge is formed as a concave arc with working radius PFRAD, matched to the outside diameter of the tube to be scarfed.
- L, cutting edge length: 15.875 mm
- IC, inscribed circle diameter: 15.875 mm
- S, insert thickness: 7.75 mm
- D1, fixing hole diameter: 5.16 mm
- PFRAD, working radius: 9 mm on SNMX 150708-R09:6640 (9-105 mm across the series)
How to choose the right insert
- Measure the outside diameter of the welded tube.
- Choose the code whose tube diameter range includes the measured value, for example 13-16 mm: SNMX 150708-R09:6640, 16-19 mm: SNMX 150708-R11:6640, 19-23 mm: SNMX 150708-R13:6640.
- Check that the mill uses a holder that accepts the SNMX 1507-R insert: PXFNR/L 2525 R 15 or PXFNR/L 2525 R 15/15 with shim SNU 150410-CX.
Other Pramet external scarfing inserts
- SNMX 15-R: L 15.875 mm, thickness 8.15 mm, grades T9335 and 6640, radii up to R90
- SNMA 1506-R: negative, double-sided, 8 cutting edges with a flat top, thickness 6.35 mm, grade 6640, radii R09-R120
- SPUB 19-R: positive single-sided insert with 11° clearance angle and 4 cutting edges, grades T9335 and 6640
- SNMX 19-R, SNMX 25-R and SNMX 2512-R: larger inserts for bigger tube diameters
For internal weld bead removal, Pramet offers PSR scarfing rings in grades T9335, 5040 and S45.