Swing Samplers
Subsurface Grab Samplers
Water Sampling Bottles
BOD Sampler
VOC Sampler
Bottom Grab Samplers
Core Samplers
Suction Sampler
TEF Sampler
Mod. Hesslein Sampler
Flowing Water Samplers
Aquatic Sampling Equip.
Benthic Aquatic Sampling
Artificial Substrate Samplers
Support Equipment
Sampling Kits
Borger Color Chart
Armored Thermometer
Forel-Ule Color Scale
Disposable Gloves
Light Density Meters
Aquatic Shaker Sieve
Pebble Count Frame
Data Collection Computers
Field Books
Field Notebooks
Soil Sampling Kits
Kayaks & Pontoons

Bottom Sediment Grab Samplers

These samplers are designed to collect an accurate representative sample of the sediment bottom. The bite of the sampler should be deep enough so all depths are sampled equally. The closing mechanism is required to completely close and hold the sample as well as prevent wash-out during retrieval. Likewise, during descent the sampler should be designed to minimize disturbance of the topmost sediment by the pressure wave as it is lowered to the bottom.

The Ekman, Ponar and Van Veen samplers meet these requirements and are excellent samplers for lakes and slow moving rivers and streams. The BM-60 and BM-54 are hydrodynamically designed for maintaining their position in faster moving rivers and streams.

Ekman Samplers
Ponar Type Samplers
Van Veen Samplers

Benthic Sediment Bottom Samplers

Ekman Bottom Grab Samplers

The Ekman Bottom Grab sampler is designed for sampling in soft bottomed lakes and rivers composed of muck, mud or fine peat. As the sampler is lowered, two hinged upper lids swing open to let water pass through and close upon retrieval preventing sample washout. When the sampler reaches the bottom, a messenger is sent down the line tripping the overlapping spring-loaded scoops. Each sampler is constructed of 316 stainless steel including the springs, cables and fasteners. Also available is a 5 ft. and 10 ft. extension handle for operating the sampler in shallow water instead of a cable and messenger. The sampler is also available as a kit which includes stainless 300 gm messenger, 100 ft. cable and carrying case (ordered separately).


Ponar Type Grab Sampler

The Ponar Type Grab sampler is a commonly used sampler that is very versatile for all types of hard bottoms such as sand, gravel and clay. It can be used in streams, lakes reservoirs and the ocean. This modified Van Veen type self-tripping sampler features center hinged jaws and a spring loaded pin that releases when the sampler makes impact with the bottom. It also includes an underlip attachment that cleans gravel from the jaws that would normally prevent lateral loss of sample. The top is covered with a stainless steel screen with neoprene rubber flaps which allows water to flow through for a controlled descent and less interference with the sample. It is constructed of stainless steel with zinc plated steel arms and weights. A simple pin prevents premature closing.

The Ponar style sampler comes in several sizes with the lightweight model (1/8" stainless plate) easily used from a small boat with nylon cable. The heavyweight models (1/4" stainless plate) should be used with a sounding reel.


Van Veen Grab Sampler

The Van Veen grab is a lightweight sampler designed to take large samples in soft bottoms. Its long lever arms and the sharp cutting edges on the bottom of the scoops, enable it to cut deeply into the softer bottoms. The Van Veen grab sampler is manufactured in two sizes from stainless steel. The weighted jaws, chain suspension, and doors and screens allow flow-through during lowering to the bottom and assure vertical descent where strong underwater currents exist. The relatively large surface area and the strong closing mechanism allow the jaws to excavate relatively undisturbed sediments. When the powering cable is slowly made taut, the chains attached at the top of the release exert great tension on the long arms extending beyond the jaws, causing them to lift, dip deeper into the sediment, and trap material as they tightly close. The stainless-steel, 583 micron, door screens have flexible rubber flaps which, during lowering, are lifted. When the grab settles on the bottom, the flaps fall back and cover the screens completely, preventing any loss of sediment during retrieval.


Wash Stand

This Wash Stand is designed for use with Eckman, Ponar, and Van Veen samplers which can be set on top of the stand cross bars while the sample washes through the #30 mesh (600m) stainless wire cloth. Fine sand and sediments wash out leaving specimens and larger particles. Made of stainless steel construction, it measures 14" x 20" x 4".

602-031 Wash Stand 16 lbs.

Sampler Messenger Accessories

603-122 300 gram messenger, stainless steel, solid

603-123 600 gram messenger, stainless steel, solid

603-124 300 gram messenger, stainless steel, split

603-125 Nylon rope, 1/4" diameter, 100 ft.

603-126 Stainless steel aircraft cable, 1/16" diameter, 100 ft.

603-127 Stainless steel aircraft cable, 3/32" diameter, 100 ft.


1700 JOYCE AVENUE  COLUMBUS, OH 43219   U.S. Only: 1-800-561-9677   PHONE: 1-614-297-9877  FAX: 1-614-297-9878