Yes—aftermarket trapezoid and Redi-Lock tooling is available for Husqvarna PG, HTC and Scanmaskin planetary grinders, usually at 30–60% below OEM pricing. The key is matching the attachment system: Husqvarna uses Redi-Lock, HTC uses its own bolt-on trapezoid, and Scanmaskin uses magnetic or screw-in plates. Once the adapter format is correct, bond hardness, grit and segment geometry are universal. JOY TECH supplies compatible tooling such as WerkMaster-style trapezoids (Diamond Trapezoid Grinding Disc (JOY-TP-R3), Double S Segment Trapezoid Disc (JOY-TP-S2)), PCD coating-removal shoes (WerkMaster PCD Tooling (JOY-WM-PCD1R1)) and replacement segments in soft, medium and hard bonds. Send us your machine model and concrete hardness and we will ship the matching set.
| Brand | Tooling format | How it mounts |
|---|---|---|
| Husqvarna PG series | Redi-Lock (bolt-on) | Spring-loaded trapezoid clicks into plate |
| HTC (Germany) | Bolt-on trapezoid (3 bolts) | 3-hole trapezoid shoe |
| Scanmaskin | Magnetic or screw plate | Magnets hold trapezoid adapter |
| WerkMaster / Blastrac | 3-bolt trapezoid | Same family as HTC |
| Lavina / Superabrasive | Magnetic or bolt-on | Quick-change plate |
Husqvarna's Redi-Lock system uses a spring-loaded trapezoid that snaps into a round or triangular plate. Aftermarket shoes are widely available. Look for:
Discs in the WerkMaster trapezoid family such as Diamond Trapezoid Grinding Disc (JOY-TP-R3) and Double Rhombus Trapezoid Disc (JOY-TP-RH2) commonly ship with a 3-bolt pattern; for pure Redi-Lock, order the Redi-Lock adapter option or choose the Husqvarna-format SKU.
HTC's 3-bolt trapezoid is the most universal format—many aftermarket shoes fit directly. Scanmaskin machines typically use a magnetic plate that accepts a standard trapezoid adapter; the trapezoid itself is generic. For both brands:
The machine brand matters less than the concrete. Use this guide:
| Concrete | Bond | Starting grit | Recommended shape |
|---|---|---|---|
| Soft / young | Hard | 30/40 | Bar or rhombus (Double Rhombus Trapezoid Disc (JOY-TP-RH2)) |
| Normal (30–40 MPa) | Medium | 30/40, 60/80 | Round R3 or S (Diamond Trapezoid Grinding Disc (JOY-TP-R3), WerkMaster Single S Segment (JOY-WMS-S1)) |
| Hard / old | Soft | 16/20, 30/40 | Zigzag or S (Double Zigzag Trapezoid Disc (JOY-TP-ZG2), Double S Segment Trapezoid Disc (JOY-TP-S2)) |
| Coatings / glue | PCD | — | Chip PCD (WerkMaster PCD Tooling (JOY-WM-PCD1R1)) |
Buyers often ask why aftermarket shoes cost less.
A: Yes. We supply Redi-Lock trapezoid shoes and adapter plates for the full Husqvarna PG range (280, 450, 680, 820). Just confirm the PG model and concrete hardness when ordering.
A: Usually yes, via the Scanmaskin magnetic adapter. The 3-bolt trapezoid shoe itself is the same; the difference is how it clamps to the head.
A: Start with medium. Run 10 m²; if segments wear too fast, go harder; if they glaze, go softer. A reputable supplier will swap bonds on the next order.
A: Avoid it. Different segment heights and geometries produce an uneven scratch pattern and vibration. Use a matched set.
Grinding tooling for Husqvarna, HTC and Scanmaskin is largely interchangeable once you match the attachment system. Build your kit around bond and grit, not brand: start with Diamond Trapezoid Grinding Disc (JOY-TP-R3) for general grinding, Double Zigzag Trapezoid Disc (JOY-TP-ZG2) for hard concrete, and WerkMaster PCD Tooling (JOY-WM-PCD1R1) for coating removal. Send your machine model and concrete sample, and the right aftermarket shoes will outproduce OEM pricing on the same floor.
