4.25 Hollow Stem Auger Continuous Sampler for Continuous Core Drilling

The 4.25 HSA Continuous Sampler is versatile and easy to use when collecting large sample volumes. For continuous core drilling, it works with both solid and split barrel samplers, adapts to changing conditions, and its lightweight design reduces operator fatigue. By keeping material contained, it delivers cleaner, more accurate samples. Optional PVC liners fit both assemblies for added flexibility during continuous core drilling. Customer reactions have been positive, including:

Cleaner

“We’re not losing volatiles out of the sampler because it’s in a liner versus in a standard split spoon. The liner is fully enclosed, so we just drill a hole in it where we need to take a reading.”

Lighter

“The actual tube is considerably lighter than a standard split spoon, so it’s less wear and tear on the guys.”

Adjustable

“It was an advantage to be able to adjust the height of the sample tube depending on the compactness of the material. Other similar samplers don’t allow you to adjust to the conditions.”

Simpler

“The other manufacturer’s version was cumbersome. You were looking at taking hours just to transfer from a traditional sampler to that one.”

Faster

“The sampling system has not only provided time savings but has increased sample volume, making logging and sampling more efficient.”

Easier

“I really like the bearing on top so the rods aren’t spinning and getting so tight you can’t get them apart.”

Safer

“The rod adapter locks in place so we can use the drive head to thread the rods versus having our fingers in there.”

Geoprobe^® Patented Interlocking Split Spoon

“We didn’t have to deal with the samplers bowing out, which makes it impossible to get the end caps off.”

Innovative Continuous Core Drilling

“When we bought the 4.25 HSA continuous sampler, the sales team called us the next week to check in and see if we like it or if there was anything we wanted to see changed. Lee Shaw [sales representative] took our ideas to engineering, and they’ve followed up with schematics. Geoprobe^® really listens to the customer more than other tool and rig manufacturers across the industry. They take complaints seriously and when they hear multiple similar concerns, they take action to offer a solution.”