Heavy Duty Parts Cabinet

A shop’s service-parts inventory is the line item that benefits most from a real cabinet and suffers most from a wall of shelving. Chains, brake pads, derailleur hangers, cassette lockrings, and master links don’t stack reliably on open shelves; in a drawer with configurable dividers, the same inventory becomes a fixed-position parts catalog visible at a glance. The Unior 991HD Heavy Duty Parts Cabinet is built for that role: 900 kg total capacity, 522 liters across 6 drawers, and the BLOCK safety system that only opens one drawer at a time.

What you get

• Drawer count: 6 with configurable dividers (dividers sold separately).
• Total capacity: 900 kg.
• Total volume: 522 L.
• Safety: BLOCK system; only one drawer opens at a time, preventing the cabinet from tipping forward when a fully-loaded high drawer is pulled out alone.

The BLOCK system is the differentiator from a standard tool chest. A 522-liter cabinet loaded to 900 kg shifts a lot of mass when one drawer is fully extended. Allowing two or three drawers open simultaneously turns the cabinet into a tipping risk; one-drawer-at-a-time interlock is the workshop standard for heavy parts cabinets.

How to load it

The 991HD is sized for service-parts inventory, not daily-driver tools. Three loading patterns work:

1. Drivetrain consumables. Chains by speed (10s, 11s, 12s); cassettes by speed and ratio; master links; pin packs. Dividers subdivide by SKU.
2. Brake consumables. Pads by compound (metallic, organic, sintered) and caliper fit; rotors by diameter and mount (Centerlock, 6-bolt); brake fluid kits.
3. Hangers, lockrings, and small parts. Derailleur hangers by manufacturer; cassette lockrings; bolt-on accessories; cable end caps.

Each drawer subdivided by the dividers turns a 87-liter drawer into 20+ visible inventory slots. A part out of stock reads as an empty divider, not as a hopeful “let me check the other drawers.”

For tool storage (rather than parts inventory), the 990WD7 chest and Hercules carriage are the right cabinets. The 991HD is the parts cabinet.

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče, Slovenia, since 1919, and is the official technical partner of multiple World Tour and downhill teams. The 991HD is built from the same Premium PLUS sheet-metal stock as the rest of the Unior cabinetry, finished to the European Qualicoat coating standard.

Shipping note: the 991HD is available only via special order and is not included in our free-freight program. Contact us for shipping details.

Pro tip from our mechanics

A parts cabinet pays back on inventory turn, not on aesthetics. The drawer-with-dividers layout that looks “the same” to a shopper saves a shop ten minutes per service ticket on parts-finding. Our workshop-layout guide covers how to position the parts cabinet relative to the bench and the receiving zone for the shortest parts-to-bike path: How to set up a professional bike workshop →