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The Norco 76312B is a professional-grade 12-ton air operated hydraulic bottle jack designed for heavy-duty lifting applications where speed, reliability, and versatility matter most. This updated model supersedes the 76312A, delivering the same proven performance with enhanced durability features. Whether you're working on heavy duty trucks, farm equipment, construction and mining equipment, mobile home set-up, or oil field applications, this bottle jack provides the power and precision you need to get the job done safely and efficiently.
What sets the Norco 76312B apart is its fast, efficient air pump that dramatically reduces lifting time on the job site, paired with a convenient manual operation mode when compressed air isn't available. The jack features a built-in relief mechanism that prevents overloading beyond its maximum 12-ton capacity, ensuring safe operation every time. With a low height of 9.625" and a maximum lift height of 19.75" including the 4" screw extension, this jack offers a total 10.125" of lift range to handle a wide variety of lifting tasks.
The Norco 76312B is built to withstand the toughest jobsite conditions. The pump piston, extension screw, and extension adapters feature a Parkerized coating that resists corrosion, while the chrome-coated ram provides superior rust protection even in harsh environments. Internally machined oil passages with smooth bearing surfaces and close tolerances ensure longer wear life and consistent performance over thousands of lift cycles.
Safety is paramount with this bottle jack. The safety bypass and overload systems prevent cylinder damage and ensure the jack cannot be used beyond the ASME/PASE load-limiting standard. The push-button air valve is connected to an in-line filter that prevents contaminants from entering the air/hydraulic system, maintaining clean operation and extending component life. The jack operates within a PSI range of 100-130 for optimal air-powered performance.
One of the standout features of the 76312B is its unique dual-mode operation. When compressed air is available, the air pump delivers fast, effortless lifting. When you're working in remote locations or air isn't accessible, simply switch to manual operation using the included two-piece zinc-plated handle. This flexibility ensures you're never stuck without lifting capability, no matter where the job takes you.
The jack's compact base size of 6.625" x 8" provides excellent stability while maintaining a footprint that fits into tight spaces. At just 24 lbs. shipping weight, it's portable enough to move around the shop or job site, and the integrated carrying handle makes transport easy. The 6" stroke combined with the 4" screw extension gives you precise height adjustment to match your exact lifting requirements.
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Technical diagram showing Norco hydraulic bottle jack construction and components
Detailed specifications chart for Norco hydraulic bottle jack models
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