Made in Germany · Owner-managed manufacturer since 1925

Factory image is family-level (2969xxxx); The cabinet is identical across both tank configurations.

Renfert Basic Prebonder Fine Sandblasting Unit, 25-70 Micron, 100-120 V

Article 29694050 · USDD 496242 · Dual tank: 50 Micron Prebonder circuit plus a 25-70 Micron classic tank

Description

Adhesive cementation succeeds or fails on The quality of one surface. The Basic Prebonder is built for that single moment. Renfert describes it as The first scientifically validated Fine Sandblasting Unit for clinical surface conditioning prior to final cementation, developed with The materials research department of The Polyclinic for Prosthetic Dentistry at Ludwig Maximilian University in Munich.

Where a conventional sandblaster is a general-purpose tool run at a low setting, this Unit gives The operator a dedicated 50 Micron Prebonder circuit with its own low-erosion nozzle, an additional 2 bar linear pressure reducer that holds pressure steady instead of letting it drift with The line, and a spacer pin and focusing aid that fix The nozzle-to-restoration distance. A control pad lets The blasting parameters be verified before a restoration is touched.

The result Renfert targets is The elimination of variability: standardised pretreatment of zirconia, metal alloys, hybrid materials and modern polymers, preventing The bonding failures caused by insufficient blasting or excessive energy input. A second interchangeable classic tank at 25 to 70 Micron keeps conventional Fine Sandblasting on The same bench footprint, and The system is built on Renfert's established Basic quattro is platform with its immediate-stop function.

Technical Specifications

What You Get

• 1 x Basic Prebonder Unit, 100 to 120 V
• 1 x Prebonder tank, 50 Micron only, with special jet nozzle, spacer pin and focusing aid (control tip), and an additional 2 bar linear pressure reducer
• 1 x Classic Fine Sandblasting tank, 25 to 70 Micron, with 0.8 mm jet nozzle
• 4 x Replacement spacer pins and focusing aids (control tips)
• 1 x Control pad test surface for monitoring The blasting parameters

Works With

• Prebonder surface pro 50 Micron aluminum oxide (Art. 15970050, USDD 496244) - The only abrasive specified for The Prebonder tank
• Renfert Cobra and Rolloblast Fine blasting abrasives in The classic tank
• Renfert dust extraction units
• A dry compressed air supply at 6 to 8 bar (87 to 116 psi)
• Expandable from 2 to 4 interchangeable 1,000 ml tanks

If You Are Looking for

• The other tank configuration of The same Unit - see The alternate Basic Prebonder listing
• The abrasive The Prebonder tank requires - Prebonder surface pro 50 Micron, Art. 15970050 (USDD 496244)
• conventional multi-tank Fine Sandblasting without The bonding circuit - The Renfert Basic classic range

Why You'll Love It

• Treats bonding preparation as a dedicated circuit rather than a low setting on a general-purpose machine
• A fixed working distance and a steady 0.8 bar remove The two variables that make blasting operator-dependent
• The control pad lets parameters be proven before a restoration is at risk
• Any technician produces The same surface, which protects The laboratory from operator-dependent remakes
• one bench position replaces a separate bonding blaster and a separate Fine sandblaster
• Developed with a university prosthodontics research department rather than by convention alone

Technique Video

Renfert GmbH — Pre-Bonding with The Basic Prebonder - secure adhesive bond through validated parameters (EN)

Documentation & Resources

• Basic Prebonder - manufacturer product page (US)
• Renfert Full Product Catalog (English) - PDF

Manufacturer

Renfert GmbH
Untere Giesswiesen 2, 78247 Hilzingen, Germany
USA: Renfert USA Inc., 3718 Illinois Avenue, St. Charles, IL 60174
Toll free USA: (800) 336-7422 · Germany: +49 7731 8208-0
info@Renfert.com · Renfert.com