Hardigg’s single-lid cases ensure that even the most delicate equipment reaches its destination intact and unharmed. Constructed of high-performance resin, they are lightweight, impervious to dust and water, and virtually indestructible—and many are designed to meet strict MIL-SPEC shipping regulations and exceed ATA Spec 300 Category 1 standards. From laptop computers to jet engines, if your equipment requires exceptional protection against mechanical shock, vibration, and extreme environmental conditions—or needs complex foam cushioning or other custom features—Hardigg has a solution.

All single-lid cases feature:

• Molded-in, tongue-in-groove gasketed parting lines for splash resistance and tight seals, even after impact
• Reinforced corners and edges for additional impact protection
• Hardigg’s patented Comfort Grip Handles
• Recessed hardware for extra protection
• Positive anti-shear locks, which prevent lid separation after impact, and reduce stress on hardware
• Molded-in ribs and corrugations for secure, non-slip stacking, columnar strength, and added protection
• Permanent, uniform, molded-in color that won’t scrape off
• Patented molded-in metal inserts for catch and hinge attachment points, which provide strength and spread loads to the container walls
• One-piece construction, molded from lightweight, high-impact polyethylene

In addition, the following options are available:

• Airtight/watertight system: Includes a pressure relief valve and gasketing hardware to safely maintain correct pressure differential.
• All-catch: Case hinges are replaced with wing/turn catch-strike pairs, allowing lid to be completely removed.
• Card holder: Metal shipping-card holder riveted to the exterior of case. Two sizes: 2-3/8" x 5-3/8" (60 x 136 mm) and 4" x 6" (102 x 152 mm).
• Caster sets – removable: Available in sets of four, these are attached with rugged mounting hardware or with Hardigg’s FastClip™ mounting plate system.
• Custom cushioning: Interior protective options include foam-lined, foam-filled, or custom-cut foam.
• Edge casters: Allow the case to be wheeled in a cart-like fashion. Each heavy-duty caster wheel is encased in a durable cast aluminum housing designed to resist impact and rough handling. Not available on all case sizes.
• Handles: Molded polyethylene Comfort Grip Handles are available in two sizes: the Model 75, rated to 75 lbs. per handle, and the Model 150, rated to 150 lbs. The Model 150 has a 90° stop, while the Model 75 has a non-integral stop. Extra 90°-stop metal handles are also available, in zinc-plate yellow-chromate, stainless steel, and stainless steel black passivated finish.
• Grab ‘N Roll™: Add a telescoping handle and wheels to convert nearly any single-lid case to a Grab ‘N Roll™.
• Grab ‘N Roll™ combination lock: Integrated three-digit combination lock provides extra security for Grab ‘N Roll™ cases.
• FlangeMount Cases: Available molded-in support shelf and threaded inserts provide additional protection for panel-mounted equipment.
• Forklift bash plates: Mounted on the bottom of a case, these plates help prevent accidental forklift damage.
• Forklift Skid-Runners: One-piece molded Skid-Runners provide clearance for forklift tines and pallet jacks.
• Hardware – Stainless steel: Recommended for applications where the standard zinc-plate or zinc alloy finishes are unsuitable, such as excessive saltwater or chemical environments.
• Hardware – Stainless steel, black: Used for the same applications as stainless steel hardware, but is non-reflective.
• Hardware – Zinc: Zinc coating over steel. Provides longest service life and best resistance to degradation from environmental factors.
• Hinged lid: Wire and hinge attachment that holds lid securely open at 90°.
• Humidity indicator: Indicates 20 percent, 30 percent, and 40 percent relative humidity ranges. Three-part face changes color when inside humidity exceeds the indicated level. As humidity decreases, the indicator resets for future use. Recommended for airtight cases only.
• ID plates: I.A.W. MIL-P-15024, Type H, Style IV, Size 10.4" x 4" x  .020" (102 x 102 x 0.5 mm) thick aluminum, fastener attached to your case. Text font is News Gothic Bold.
• Labels – front: A set of two "front" labels is affixed to the case, one on the base and one on the lid, in the latch wells.
• Labels – standard: Each label set includes: Delicate Unit, Handle with Care, and up arrows.
• Lifting/tie-down rings: Welded, spring-loaded rings provide hoisting and tie-down attachment points with two-inch diameter clearance for hooks, and can pivot 180°. Available in plated steel or stainless steel.
• Locking cable catch/hasp: Allows the case to be padlocked shut. Cable is tamper-resistant aircraft steel (padlock not included).
• Reverse application:  Case orientation is reversed: the lid becomes the base and vice versa. The lid has stacking indents instead of stacking ribs. No charge for this option.
• Valve – Fill/Purge: Supplied with an inner tube valve core, recommended for pressurization of case. Housing and cap are black anodized aluminum alloy. Recommended for use with Purge Valve option.
• Manual Pressure Relief Valve:  Recommended for equalization or air relief. Recommended for use with the Fill Valve option.
• Custom stenciling: Per MIL-I-43553. Available in black, white, and yellow, depending on the color of the case. One ink color per case.