Heavy-Duty. Ergonomic. Australian Made.
The Delta 135 Ratchet High Back Chair is the ultimate traditional ergonomic all-rounder — trusted, tested, and built for performance. Designed to accommodate a wide range of body types, the Delta Range offers multiple back and seat size options, ensuring superior comfort and tailored support for every user.
Featuring a 3-lever heavy-duty ratchet mechanism, it provides fully adjustable ergonomic support, including seat height, back and seat tilt, and ratchet back height adjustment. Built with locally made moulded foam and durable components, it is engineered to withstand severe heavy-duty use while maintaining long-lasting comfort and resilience.
Overall Height (Max): 1120mm
Overall Width: 640mm
Overall Depth: 640mm
Certifications: AFRDI Level 6, AFRDI Rated Load – 135kg S/S, GECA, FSC
Origin: Australian Made
Weight Capacity: 135kg
Warranty: 15 Years
October 27, 2025
