TUFFBLOK XL Tube Rack, 4-Way, PP, Assorted Colors, 456945AST - autoclavable storage

A TUFFBLOK XL tube rack is essential laboratory storage equipment for organizing multiple test tube sizes simultaneously. The Globe Scientific TUFFBLOK XL Model 456945AST delivers professional-grade performance in assorted colors (blue, green, orange, pink, yellow). This tube rack accommodates four different tube sizes on separate sides, making it ideal for complex laboratory workflows. Its autoclavable polypropylene construction ensures sterilization compatibility and long-term durability in demanding clinical and research environments.

Autoclavable TUFFBLOK XL Tube Rack with Multiple Tube Size Capacity

The TUFFBLOK XL tube rack design allows laboratories to organize different tube diameters without purchasing multiple racks. Each side holds different tube sizes: eight (8) 50mL tubes, twenty (20) 20mm tubes, twenty-four (24) 15mL tubes, and forty (40) 12mm tubes. This versatility transforms workflow efficiency by reducing bench clutter and enabling simultaneous access to multiple tube sizes.

Heavy-Duty Construction & Chemical Resistance

The TUFFBLOK XL tube rack construction uses reinforced autoclavable polypropylene (PP) that resists chemical degradation. This material withstands exposure to alcohols, acids, and standard laboratory disinfectants without cracking or warping. The durable design supports repeated sterilization cycles at 121°C without compromising structural integrity or tube positioning accuracy.

Linkable Design for Expandable Storage

Multiple TUFFBLOK XL tube rack units snap together seamlessly, allowing laboratories to expand storage capacity without redesigning bench layouts. This modular approach reduces capital expenditure by enabling growth-based purchasing rather than buying oversized racks upfront. Laboratories of any size can customize their tube storage system.

Technical Specifications

• Model Number: 456945AST

• Dimensions: 8" L × 4" W × 3.8" H (200mm × 100mm × 96mm)

• Material: Autoclavable polypropylene (PP)

• Color: Assorted (Blue, Green, Orange, Pink, Yellow)

• Autoclavable: Yes, at 121°C

• Chemical Resistant: Yes, to alcohols, weak acids, and standard lab disinfectants

• Tube Capacity: Eight (8) 50mL/30mm tubes, Twenty (20) 20mm tubes, Twenty-four (24) 15mL/17mm tubes, Forty (40) 12mm tubes

• Total Capacity: 92 tubes per rack (in four different size combinations)

• Linkable: Yes, units snap together for expanded capacity

• Included Identification: Molded alphanumeric markings for quick tube location

• Stackable: Yes, when empty for compact storage

• Packing: 5-pack standard order (multiple colors per pack)

• Weight: Lightweight for easy handling and transport

Workflow Benefits for Laboratory Professionals

The TUFFBLOK XL tube rack eliminates sorting through multiple single-size racks. Technicians access all required tube sizes from one compact organizer, reducing sample handling time by 30–40% compared to traditional single-purpose racks. This efficiency gain directly improves productivity in high-volume laboratory environments.

Vertical tube positioning in the TUFFBLOK XL tube rack minimizes sample spillage and cross-contamination risk. Tubes remain secure and organized throughout centrifugation preparation and transport steps, protecting sample quality in clinical diagnostics and research applications.

Rather than purchasing five different single-size racks, laboratories standardize on the TUFFBLOK XL tube rack model. The linkable design accommodates growth without excess inventory, lowering total equipment costs while maintaining bench organization standards.

Applications in Laboratory Settings

• Clinical Diagnostics: Organize blood collection tubes during high-volume specimen processing

• Hospital Labs: Coordinate multiple tube sizes during routine analysis workflows

• Research Facilities: Maintain sample organization during multi-assay experiments

• Educational Laboratories: Teach proper sample handling and tube management protocols

• Quality Control Labs: Organize reference standards and validation samples

Why Choose the TUFFBLOK XL 456945AST

The TUFFBLOK XL tube rack (Model 456945AST) outperforms competitors through superior heavy-duty construction and true 4-way design. Unlike inferior plastic racks that warp under repeated sterilization, the reinforced polypropylene maintains dimensional accuracy for 5+ years of daily laboratory use. Assorted color options enable rapid sample identification and visual organization at a glance.