Envco – Environmental Equipment

The current Shipek® is based upon the design of the late Carl J. Shipek, noted oceanographer, and is manufactured to the original specifications. It consists of two concentric half cylinders, the outer of which is the sampler body. A cocking wrench, included, is used for winding the torsion springs. A safety hook prevents their premature release when held in the safety position. Cast into each end of the frame are large stabilizing handles which, along with its weight, hold the sampler upright during descent.

• Center pivot for undisturbed samples
• 3000 mL scoop volume
• Stable on bottom slopes of 20° or more
• For deep lakes and near offshore
• Single rotating jaw scoop, automatic release

When the grab touches the bottom, inertia from a self-contained weight releases a catch and helical springs rotate the inner half cylinder by 180°. After turning, the scoop remains closed by the residual torque of the scoop spring. Because the rotation of the bucket is very rapid, its shear strength is far greater than the sediment strength, thus cutting cleanly, particularly in soft clays, muds, silts and sands.

After closing, the sample is protected from washout during retrieval by the cylindrical design. This is because, unlike other grabs, the bucket closes with its separation plane aligned in a horizontal rather than vertical direction. Good samples can be retrieved even when pebbles as large as 2 to 5 cm prevent the bucket from closing properly. And, if you take care to rotate the bucket, you can prevent sample washout completely. On the boat, remove the scoop from the frame by releasing two latches, one at each side. Your sample is then ready for immediate study or transport.

Metal parts: 316 stainless steel (fasteners 18/8)
Size: 472 x 638 x 442 mm (18.6 x 25.1x17.4”)
Weight/ ship wt: 60 kg (134 lb.)/ 90 kg (200 lb.) ship wt.
Case: 546 x762 x 1092 mm (21.5 x 30 x 43”)
Volume/ Bite: 3000 mL/ Bite depth 102 mm (4”)
Sample area: 1/25 (.04) square meter
Scoop top area: 198 x 198 mm (7.8 x 7.8”)

Shipek® must be used in 7m (22’) or larger boats with 81-A10 crane at a minimum and only in low waves.

Ordering Information
Shipek® Grab Includes: ship crate, (2) 860-A30 buckets, 860-A35 cocking wrench.
860-A10* Shipek® Grab/ Ship Crate
860-A30 Shipek® Bucket, extra

Replacement Parts and Accessories:
860-A35 Cocking Wrench, extra
860-L15 Torsion Spring Replacement, 2

61-B14 Cable, stainless steel, 100 feet
61-B52 Cable, stainless steel, 100 m (330’)
85-E10 Winch/ depth meter, oversize
81-A10 Large boat crane, oversize
188-E50 Wash frame for rinsing contents