1. Straight Planer Blades

These are the most common blades.

How they work:

• Fixed straight blade rotates in cutter head
• Removes wood in straight cutting action
• Good for normal wood planing

Used in:

• Thickness planer
• Jointer machine
• Hand planer

Material Types:

• HSS (High Speed Steel) – for soft wood
• TCT (Tungsten Carbide Tip) – long life and hard wood cutting

2. Helical / Spiral Cutter Blades

These use many small carbide inserts arranged in spiral form.

How they work:

• Small inserts cut wood one by one
• Gives smoother finish
• Less noise and vibration
• Easy to replace single insert

Benefits:

• Better surface finish
• Longer tool life
• Less tear-out on wood grain

3. Disposable / Reversible Blades

Double-edge blades that can be rotated when one side becomes dull.

How they work:

• Use one edge first
• Rotate blade after dullness
• Replace after both sides wear out

Best for:

• Portable planers
• Small woodworking machines

4. Moulding & Profile Planer Blades

Special shape blades for decorative designs.

Moulding and profile planer blades (often called moulder knives) are specialized cutting tools designed to cut complex decorative contours into wood. Unlike standard flat planer blades that simply flatten a board’s surface, these blades are precision-ground into unique geometric shapes to manufacture items like crown moulding, baseboards, picture frames, and tongue-and-groove flooring.

How they work:

• Blade shape creates design on wood
• Used for furniture and decorative panels

How Planer Blades Work

Working Process

1. Wood enters machine
2. Cutter head rotates at high speed
3. Blade removes thin layer from wood surface
4. Smooth and equal thickness surface comes out

Basic Formula of Cutting

Cutting depends on:

• Blade sharpness
• RPM speed
• Feed speed
• Depth of cut

Common Uses

• Wood surface smoothing
• Thickness sizing
• Furniture making
• Door and panel finishing
• CNC woodworking preparation

Which Blade is Best?

Planer blades (also known as planer knives) are core cutting components used in woodworking machinery to flatten surfaces and reduce the thickness of wooden boards.

Sharav Corporation, a major supplier of industrial cutting tools based in Ahmedabad, offers high-performance variants designed specifically to withstand dense wood composites, solid hardwoods, and rigorous CNC or manual machining operations.

1. Key Types of Planer Blades

Planer blades are generally categorized by how their cutting edges are constructed and the type of materials they are engineered to cut.

• T.C.T. Brazed Planer Blades (Tungsten Carbide Tipped):
  • These blades consist of a durable structural steel body with an ultra-hard Tungsten Carbide strip permanently brazed onto the cutting edge.
  • Carbide tips offer massive resistance to abrasive glues, resins, and minerals found in composite woods. They last roughly 10 to 20 times longer than standard steel blades before requiring resharpening.
• Solid Carbide Planer Blades:
  • Unlike brazed blades, these are machined completely out of solid micro-grain carbide alloy.
  • They are highly brittle but provide exceptional rigidity, allowing for an incredibly clean finish on dense, abrasive hardwoods without the risk of the edge flexing or delaminating.
• Polycrystalline Diamond (PCD) / “Half Diamond” Blades:
  • PCD blades feature a synthetic diamond layer bonded to a carbide backing substrate.
  • The “half diamond” profile configuration refers to customized tooling geometries where a portion of the cutting surface is engineered with diamond armor to optimize surface finish and reduce tool pressure on deep cuts. They are unmatched for high-volume production cutting of MDF, HDF, laminated flooring, and glass-fiber reinforced panels.
• High-Speed Steel (HSS) Blades:
  • Traditional solid steel blades alloyed with tungsten or cobalt. They can be honed to a razor-sharp edge for glass-smooth finishes on clean softwoods, but wear down quickly when exposed to abrasive composite materials.

2. Core Operational Advantages

The engineering behind carbide and diamond blade options yields specific performance benefits in industrial woodworking shops:

• Exceptional Wear Resistance: Carbide and synthetic diamond properties retain edge geometry under extreme friction temperatures that would instantly dull or burn standard HSS.
• Reduced Machine Downtime: Because carbide and diamond tips stay sharp significantly longer, operators spend less time shutting down machinery to swap out, balance, or regrind worn-out knife sets.
• Smooth Surface Finishes: Sharp, rigid cutting edges prevent grain tear-out and chipping, drastically lowering the need for secondary wide-belt sanding operations after planing.
• Resilience Against Composite Glues: Standard steel blades heat up and crack when processing the chemically cured bonding adhesives used in plywood and MDF; carbide and diamond handle these glues seamlessly.

3. Availability via Sharav Corporation (Ahmedabad)

Sharav Corporation supplies a broad line of precision-engineered industrial cutting edges to the local wood processing, interior manufacturing, and furniture sectors out of their central hub at Sumel Business Park-7 in Rakhial.

• Product Offering: They actively market and distribute specialized T.C.T. Brazed Planer Knife Blades alongside their extensive catalog of solid carbide router tools, end mills, and 3D carving ball nose bits.
• Pricing Structure: Their industrial planer blades are structured across a standard industrial pricing matrix ranging from ₹6,000 to ₹16,000 per blade set, varying directly by the physical length, thickness, and specialized tip grade chosen for your specific surface planing or jointer machines.

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