Blum TANDEM+ Drawer Slides for Cabinet Builders

TANDEM+ slides deliver 90-100 pound capacity with integrated BLUMOTION soft-close and 4-dimensional adjustment that actually works. Skip them if you’re building shop cabinets or utility drawers where soft-close doesn’t matter. The 563H series targets 5/8” drawer sides — perfect for quality residential work where clients expect smooth, quiet operation.

What Makes TANDEM+ Different

The 4-dimensional adjustment system lets you fine-tune drawer alignment after installation: height +3mm, side-to-side +/-1.5mm, depth +3mm/-2mm, and tilt +5mm. No removing drawers to tweak mounting brackets. No shimming. Just turn the adjustment screws and watch the drawer front align perfectly.

Every TANDEM+ slide comes with BLUMOTION integrated — not clipped on, not retrofitted. The soft-close mechanism works regardless of how hard someone slams the drawer or how much weight it carries. Zinc-coated steel construction with permanently lubricated synthetic rollers means these slides won’t start squeaking after two years like ball-bearing alternatives.

The 563H4570B model extends 18 inches with a drawer bottom recess requirement of just 1/2 inch. That shallow recess preserves interior drawer height — crucial when maximizing storage in base cabinets. Standard lengths include 18”, 21”, and 24”, all rated for the same load capacity.

Installation Requirements and Compatibility

Face frame cabinets need rear mounting brackets (sold separately or in kits) and front locking clips. Frameless construction allows direct side-mount to cabinet walls with rear brackets optional. Don’t assume the brackets come with the slides — some kits include locks and brackets while bulk sets don’t.

TANDEM+ works with wood drawer boxes only. Minimum inside drawer width varies by locking device type (narrow vs. standard). Required hardware includes front locking devices (standard, 2-way, or 3-way), installation screws (#6 x 5/8” or #7 x 5/8” flat head), and rear mounting brackets for face-frame cabinets.

The mounting hole pattern uses elongated slots for easy depth adjustment during installation. Bottom-mount holes on 18” models allow direct mounting to horizontal surfaces — handy for certain pullout applications.

Load Ratings and Certifications

Specification	Value
Dynamic Load	90 lbs (soft-close rating)
Static Load	100 lbs
ANSI/BHMA Certification	Grade 1 (meets or exceeds)
Manufacturing	ISO 9001 certified process
KCMA Compliance	When installed correctly

Made in USA manufacturing means consistent availability without container delays. The 100-pound static rating handles Montana’s heavy cast iron cookware and canning jar collections that destroy lesser slides.

TANDEM+ costs more than basic undermount slides. The 4-dimensional adjustment saves callbacks on drawer alignment. The integrated BLUMOTION eliminates slamming complaints. Limited lifetime warranty for the original homeowner protects your reputation. For kitchen and bath installations where quality matters, TANDEM+ delivers what contractors need.

Frequently Asked Questions

Q: What’s the actual weight capacity of Blum TANDEM+ drawer slides?

Blum TANDEM+ slides handle 90 pounds dynamic load (with soft-close engaged) and 100 pounds static load. The 563H4570B 18-inch model maintains these same ratings across all standard lengths including 21” and 24” versions.

Q: Do TANDEM+ slides come with the mounting brackets I need for face frame cabinets?

No, rear mounting brackets and front locking clips for face frame installations are typically sold separately. Some retailers offer complete kits that include these parts, while bulk sets contain only the slide pairs — check what’s included before ordering.

Q: What drawer thickness works with the 563H series TANDEM+ slides?

The 563H series accommodates drawer sides from 1/2” to 5/8” thickness (12.7mm to 16mm). These slides require a minimum 1/2” drawer bottom recess and work only with wood drawer boxes, not metal or plastic.

Q: How much adjustment do I get with TANDEM+ after installation?

TANDEM+ provides 4-dimensional adjustment: height +3mm, side-to-side +/-1.5mm, depth +3mm/-2mm, and tilt +5mm. All adjustments are tool-free after initial mounting, letting you perfect drawer alignment without removing the drawer.

Q: What’s the difference between TANDEM+ and Blum’s MOVENTO slides?

MOVENTO offers higher load ratings up to 170 pounds and 6-dimensional adjustment compared to TANDEM+‘s 100-pound capacity and 4D adjustment. TANDEM+ targets standard residential applications while MOVENTO handles heavier commercial or luxury residential installations.

Q: Are TANDEM+ slides actually made in the USA?

Yes, Blum manufactures TANDEM+ slides in the USA with ISO 9001 certified processes. The slides meet ANSI/BHMA Grade 1 standards and carry KCMA compliance when properly installed.