BI-MTAL BAND SAW BLADS PRODUCT RANG Types Range Grade of Steel APPLICATIONS l Steel l Stainless Steel l otic l High Alloy l Non - Ferrous Material l Aluminium l Cast Iron l l Width 6. mm, 1. mm, 13. mm, 2. mm, 27. mm, 41. mm, 54. mm & 67. mm. l M42 & M51 INDUSTRIS l Furia, Katana, Titan, Alumina Forging & Casting l Automotive & Auto components l Heavy ngineering l General ngineering l Railways l Die & Mould 19
MIRANDA BIMTAL FURIA - BIMTAL M42 Bi-Metal band saw combines a special alloy steel backing which offers a very good mechanical resistance, thus allowing a high output with a high quality High Speed (M42) cutting edge. This blade offers the best possible cutting performance at high speeds, it solves production efficiency problems. High output, recommended for industrial production on automatic and semiautomatic machines. FURIA - N CONSTANT PITCH 1.2 2 3 4 6 8 1 12 18 USS w Workshop production general engineering and steel work w Structural steel cutting, alloy steel, stainless steel, pre-treated steel, large steel section. N : NORMAL 6.9 1/4.35 1.9 3/8.35 13.65 1/2.25 FURIA - VN / VI VARIABL PITCH.75/ 1.25 1.2/2 1/4 1/6 13.9 1/2.35 1.9 3/8.35 2.9.35 VN : VARIABL 13.65 1/2.25 13.9 1/2.35 2.9.35 411.3 11/2.5 6.6 1/4.35 CI : HOOK 1.9 3/8.35 13.65 1/2.25 2.9.35 13.9 1/2.35 2.9.35 VI : POSITIV 271.1 1.42 541.3 2.5 541.6 2.63 541.6 2.63 671.6 2.63 671.6 2.63 81.6 3.63 2
MIRANDA BIMTAL ALUMINA - M42 An etra-wide cut giving a half-setting 6% larger than that of a standard blade. This gives it a 6% larger set, which prevents the material from closing up after the cut has been made. A variable pitch with a raker group of 5 teeth reduces vibration during cutting. Blade especially developed to cut aluminum, a material difficult to saw, as it trends to close up when cut. CONSTANT PITCH CI:HOOK 2.9.35 1.25 2 3 MIRANDA BIMTAL KATANA - M42 Made from M42 steel with VX teeth, this new blade is an unrivaled combination between hardness and resilience. The tooth design increases the rigidity of the blade and results in a straighter, more accurate cut. The reduced cutting angle offers greater tip sharpness, enabling optimum penetration particularly in sticky materials & requires less cutting effort. Ideal for cutting stainless steel and cold workable materials. VARIABL PITCH VX:HARD 54X1.6 2.63 671.6 2.63.75/ 1.25 1.2/2 non ferrous metal profile wood with nails plastic pallet steel copper, brass stainless steel aluminium hard to work materials MIRANDA BIMTAL TITAN - M51 Bi-Metal band saw combines a superior alloy steel backing which permits maimum loading with a very high quality High Speed Steel (M51) cutting edge. This blade offers outstanding performance both in cutting and penetration on automatic and semi automatic machines US l Fully & semi automatic machines. l High hardness (13 N / mm2) high alloy steel. l Stainless steel. l Fireproof steel. l Super alloy steel : Inconel-Hastelloy-Monel. TITAN - CI CONSTANT PITCH CI:HOOK 54X1.6 2.63 1.2 2 3 TITAN - VX VARIABL PITCH VX:HARD 54X1.3 2.5 54X1.6 2.63 671.6 2.63.75/1.25 1.2/2 21
Miranda range charts below will help you select the proper band saw material for your application. Criteria to be considered includes : Quality of material-relating to number of cuts required, length of band, section type, material to be cut and teething. MIRANDA BIMTAL RANG Miranda Bimetal offers you a full range to satisfy all needs. Aluminum Profiles FURIA PROFILA KATANA TITAN ALUMINIA CSm/mn +6 Bronze Profiles +1 Low High Carbon steels Carbon steels Profiles Profiles 9 7 Alloy steels 6 Bearing steels Steel for moulds 45 Tools Steel Stainless steels Nickel based stainless 4 2 Titanium 15 MIRANDA BIMTAL helps you to choose the right teething. CUTTING ANGL l Use a positive cutting angle to cut non ferrous materials. CI, VI, VIL, VX, V+ PITCH Choose the teething with the charts. The teething is in TPI (number of teeth per inch) When the sections to be cut are variable use a variable pitch blade to allow a wider application range. L (mm) (mm) 2 3 4 5 6 8 1 12 15 2 3 5 2 4 6 8 1 12 15 2 3 5 PROFILS AND PIPS If the unit forms hollows : l Take = * (Number of walls / 2) l Take L = length of batch and report to the table. Blade Tension : 1.2/2 Once the blade is correctly seated on the machine, start tensioning the blade. As it tightens it is vital to check whether the blade remains in the correct position. Follow the values given by the machine manufacturer. You can also use a tension gauge to verify the adjustments. If the machine manufacturer has not given indication of blade tension, use this chart as a guide. L l Use a neutral cutting angle for alloyed construction steel and for profiles. SOLID BARS L (mm) 2 27 34 41 54 67 Constant pitch 18 1 8 4 4 3 2 1.2.75 Horizontal Machine Min 16 21 23 Ma 2 22 27 28 L H, VN THICKNSS (mm) 2 3 5 8 12 16 22 3 4 7 1 2 3 45 6 + Min 18 19 23 Variable pitch 1.2/2.75/1.25 Vertical Machine Ma 26 3 29 22
1. Premature dulling of teeth F Improper break-in F Teeth in wrong direction F Bad steel structure not homogenous F Hard spots or abrasive material F Cutting fluid badly used F Too high cutting speed F Reduce speed and feed during break in of 3% F Flip blade inside out F Check material hardness F Increase Feed F Check coolant miture % 2. Teeth fracture F Improper break-in F Work piece not clamped F Incorrect tooth selection F Guides arms not adjusted properly F Incorrect speed or feed F Reduce speed and feed during break in of 3% F Check hydraulic pressure F Adjust or replace the guide arms F Adjust speed and feed 3. Teeth Stripping F Improper or on break-in F Parts not held properly F Incorrect tooth selection F Lack of lubricant F Feed too high F Bad steel homogeneity F Bad chip removal F Reduce speed and feed during break in of 3% F Check hydraulic feed F Reduce feed and check cutting conditions F Check hardness F Check the brush and chip removal 4. Blade breakage or cracks in gullet F Too high blade tension F cessive feed F Incorrect tooth selection (too coarse) F No lubricant or incorrect lubricant F Guide arms too far from the work F Guides too tight (twisting of the blade) F Teeth working before starting the cut F Reduce tension F Reduce feed conditions F Reduce to the length to be cut F Check the blade position inside the guide F Allow 15mm clearance before starting cut 5. Wear on back of blade F Incorrect tension of the blade F Too high feed on the back F Too high feed F Blade incorrectly set up F Worn guides F Bad set up creates cracks F Reduce tension F Reduce feed F Check blade position F Check guides arms and rollers F Change blade and check guide arms 6. Chip weld on the teeth F Cut badly cooled or/and incorrect lubricant or no coolant F Too high cutting speed F Incorrect chip removal and coolant nozzles position F Reduce speed F Check the brush and its position 23
7. Wear on the two sides of the teeth F Incorrect set up of the blade F Teeth rubbing on the guides arms F Guide arms are too wide for the blade F Insufficient blade tension F Non homogeneous material F Worn cut guides F Adjust guides arms width F Adjust guide arms width F See machine operator s manual for blade thickness F Check blade tension F Check work piece hardness F Replace guide arms 8. Wear on one side of the teeth F Teeth are in contact with wheels due to a rollers wear F Incorrect guides position F The bade is twisted when cutting hard material F The bade is rubbing on the machine F Check wheels surface F Check guides F No: correct blade F Check blade position 9. Blade wear F Work badly cooled or/and incorrect lubricant or no lubricant F Cutting speed too high F Incorrect feed F The blade has cut running backwards and nozzles position F Check the teeth direction before setting up the blade 1. Tooth gullet overloaded F Too fine pitch F Too high feed F Incorrect feed F No brush or worn out F Incorrect lubricant or no lubricant F Select a new blade F Decrease feed F Check the brush and position F Check the lubricant 11. Wear on each side of the blade F Worn guides or chips between guides and blades F Tips of the guides are too tightened F Lack of lubricant between guides and blade F Incorrect lubricant or no lubricant F Check guides and nozzles position F Check the free movement of the blade 12. Uneven wear and spots on the sides of the blade F Damaged or missing guides F The blade I rubbing on part of the machine F Chips jammed in the guides F Incorrect lubricant or no lubricant F Check guides and replace/adjust as necessaey F Check the free movement of the blade F Check the obstruction
13. cess wear to the back F cessive feed F Too much pressure F Blade badly positioned, rubbing on the wheels F Guide tips worn, reduce pressure F Check the wheels surface and the positioning F Check the tips. Bowed blade towards teeth The blade makes a bow with the teeth are turned outwards F cessive feed F Guides too close to the work & rubbing near the teeth F Blade out of the guides F Wheel bearings wear due to ecessive blade tension F Check the blade for free movement F Check the blade positioning F Check wheels surface and blade tension 15. Bowed blade towards teeth The blade makes a bow with the teeth are turned outwards F cessive feed F Guide arms too tight, rubbing on the back F Guides too far apart compared to the piece F Wheel bearings wear due to ecessive blade tension F Check the blade for free F Check the blade positioning F Check wheels surface and blade tension 16. Twisted blade F cessive feed F Guides too tight F Work piece is loose F No lubricant F Check guide adjustment F Check the hydraulic vice 17. Bad surface finish F Worn out blade F Feed and speed not correct F Poor blade tension F No guides F Incorrect tooth select F Replace the blade F Check operator s manual for a correct tension F Check the guide F Check the manual and re select the tooth pitch 7 18. Wandering cuts - going off line F Damage to the set of the teeth F Over feeding F Insufficient blade tension F Guide set too far apart or not in line F Check material hardness Reduce feed force F Position arms as chose to work as possible F Check guides 25