BG-750 Box Corer
The BG-750 is the largest corer in Ocean Instruments’ BG series, purpose-built for geochemical and deep-ocean sediment sampling. Its robust design and precise engineering make it ideal for use on large research vessels working in deep water environments. This corer provides high-quality sediment cores with minimal disturbance to surface and subsurface layers.
Key Features
- Flow-through box design to reduce bow wave effects during descent
- Double-door sealing system for sample containment and water column isolation
- Teflon®-coated slides for smooth, reliable penetration into sediments
- Adjustable penetration stops to control depth
- Pre-trip safety pin for secure deployment handling
- Includes mold for casting lead weight packs and frame weights
All aluminum parts are anodized or painted, and fasteners are stainless steel.
Depth penetration is 61 cm.
Material: Aluminum and stainless steel
Box material: Aluminum with Teflon-coated interior
Weight: 712 kilos
Height: 225 cm (tripped condition)
Deck Footprint: 110 cm X 110 cm
Box area: 30 cm x 30 cm x 90 cm
Sampling area: 0.1 m2
Box cores are used to sample soft sediments in lakes and oceans. The corer is lowered vertically until it impacts the seabed. At this point, the instrument is triggered by a trip as the main coring stem passes through its frame. While pulling the corer out of the sediment, the spade swings underneath the sample to prevent loss. The recovered sample is completely enclosed after sampling, reducing the loss of finer materials during recovery. Stainless steel doors, kept open during the deployment to reduce any “bow-wave effect” during sampling, are triggered on sampling and remain tightly closed, sealing the sampled water from that of the water column. On recovery, the sample can be processed directly through the large access doors or via the removal of the box completely, together with its cutting blade.
A properly designed and operated box corer is suitable for collecting zoo- benthos (Gage & Tyler 1991, Paterson et al. 1998), surficial sediments (McCave 1985, Ekeroth et al. 2012), and surface concretions (Hessler & Jumars 1974, Veillette et al. 2007). A box corer can also be used for sub-coring to minimize core shortening or for taking replicate subsamples (Blomqvist & Boström 1987).
For more information, please contact us at (858) 454-4044 or brock@o-vations.com.
