Jintan Changzhou China · ISO 9001:2015
Inclinometer Casing And Geotechnical Instruments From Our Own Extrusion Lines
Grooved ABS PVC and aluminium casing held to OD 70 plus minus 1.0 mm, with vibrating wire instruments to read the holes you install.
What We Make
Four Product Lines Built Around Ground And Cable Work
Avans Tech has focused on technical products and materials for geotechnical monitoring for more than ten years, and extrudes its own casing in Jintan, Changzhou. The tape range covers the electrical side of the same infrastructure projects.

Inclinometer Casings
Grooved casing strings in ABS PVC and aluminium, extruded in house to a single groove standard so one probe fits every hole on site.
7 products
Monitoring Instruments
Inclinometers piezometers load cells strain gauges and water level meters for long term geotechnical and structural monitoring.
6 products
Geomaterials
Welded thermoplastic geocell that confines local fill and raises the bearing capacity of weak subgrade.
1 products
PVC Tapes And Films
Electrical insulation fireproof and protective tapes produced to published thickness tensile and dielectric values.
9 productsProduct Range
Sixteen Of Our Twenty Three Products
Every product carries the published specification from our own data sheets. Nothing is listed that we cannot supply.

Settlement Magnet Ring
The AT-88 series settlement magnet ring is the target component in a settlement measurement system. The housing is injection...
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Optional Parts For Inclinometer Casings
Top and bottom caps and outer protection boxes for inclinometer casings. These are the parts that keep a monitoring hole usable...
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Piezometer Casing Pipes
GT-PC series PVC piezometer casing is supplied in OD 53 mm, 70 mm and 80 mm, in 2 m or 4 m lengths, with wall thickness deviation...
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Standard Aluminum Inclinometer Casing
GT-AL-00 is the standard OD 70 mm aluminium inclinometer casing, built to the same groove and straightness specification as our ABS...
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Standard PVC Inclinometer Casing
GT-PVC-00 is the standard OD 70 mm PVC inclinometer casing, dimensionally matched to our ABS casing so the same probes and...
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Flushed ABS Inclinometer Casing
GT-ABS-01 is the flushed type ABS inclinometer casing at OD 70 mm, supplied in 3 m lengths with a slim 73 mm coupling at 3 mm wall...
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Standard ABS Inclinometer Casing
GT-ABS-00 is the standard OD 70 mm ABS inclinometer casing with four internal guide grooves for traversing probes and in place...
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In Place Inclinometers
In place inclinometers are left installed in the casing so a borehole is read continuously instead of being surveyed by hand. The...
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Vibrating Wire Load Cell
Two earth pressure load cell models are supplied. AT-LC-2020 is a vibrating wire load cell for the pressure stress between soil and...
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Vibrating Wire Strain Gauge
Two vibrating wire strain gauge models are supplied. AT-SG-4051 is a concrete strain gauge for welding to steel structures such as...
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Vibrating Wire Piezometer
Vibrating wire piezometers in the AT-PIE30 series measure pervious pressure in the foundations of dams, hydraulic structures and...
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Geotechnical Inclinometer
The geotechnical inclinometer is a traversing probe lowered through grooved casing to survey lateral movement with depth. The probe...
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Water Level Meter
The GT-WLM series water level meter is a dip meter for measuring water depth in boreholes and standpipes. Eight tape lengths cover...
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Geocell
Geocell is a cell structure welded from thermoplastic sheets that is shipped collapsed and stretched open on site, then filled with...
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PVC Warning Tape
PVC Warning Tape is a plasticized PVC film coated with a pressure-sensitive adhesive, supplied in 0.13 mm and 0.15 mm thicknesses...
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Self-Adhesive Fireproof Wrapping Tape
Self-Adhesive Fireproof Wrapping Tape model FSD-99 is a 0.7 mm by 60 mm by 5 m self-adhesive tape that chars on flame contact to...
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Industries We Supply
Dams And Hydraulic Structures
Dams, revetments, wharf walls and cut-off walls need pore pressure and earth pressure data over decades, not just at commissioning.
Industry pageTunnels And Metro
Tunnel and metro works combine deep excavation, cable-dense plant rooms and alarm thresholds that must be met on a live programme.
Industry pageHighways And Railways
Road and rail subgrade over soft ground has to be reinforced, then proven to be settling within the design envelope.
Industry pagePower And Utilities
Distribution and HV cable work fails at the joints. The tapes on the van decide whether a joint survives the first wet winter.
Industry pageAutomotive Wire Harness
Harness tape is bought on three things at once: bundle diameter, temperature rating and restricted substance compliance.
Industry pageWhat Problem We Solve
The Problems Buyers Bring To Us
- Casing, couplings, caps and probes bought from different suppliers that do not fit together on site
- Project quantities of casing arriving in batches and holding up the drilling programme
- Instruments sized to the wrong range, so the resolution is wasted where the real load sits
- Cable joints that pass commissioning and then fail through moisture in the first wet season
- Monitoring holes destroyed by site plant before the project is handed over
One supplier for the casing, the caps, the protection boxes and the instruments that read the hole means the parts match by specification, not by luck. Our casing shares one groove standard across ABS, PVC and aluminium, and our instrument ranges are published so a cell or piezometer can be sized to the real pressure before it is ordered.
Why Customers Choose Us
Capability In Numbers
Quality
Our Quality Management System is based upon the requirements of ISO 9001:2015, which keeps casing production traceable and qualified.
Inventory
A large inventory means the products you need are there when you need them, including small order quantities.
Service
We respond personally and quickly to specific customer requirements, and free samples are available for evaluation.
Solutions
How We Work Through A Project
Borehole Monitoring Installation
From casing selection to the first survey reading, with one supplier responsible for the parts that have to fit each other.
7 stagesCable Jointing And Protection
A joint kit is only as good as its weakest layer. This is how the tape range is put together by voltage, sealing and fire duty.
6 stagesSubgrade Reinforcement And Settlement
Confine the fill you already have, then prove the settlement is inside the design envelope layer by layer.
6 stagesKnowledge Centre
Technical Guides From Our Own Specifications
Questions Buyers Ask
Frequently Asked Questions
What does Avans Tech make
Geotechnical and structural monitoring instruments, inclinometer and piezometer casing, geomaterials such as geocell, and PVC electrical, fireproof and protective tapes. There are 23 products in the catalogue.
Where are you located
RuLin Industrial Park, Jintan, Changzhou, Jiangsu Province, China 213200.
Is your quality system certified
The company is approved to ISO 9001:2015, which keeps casing production traceable and qualified.
What production capacity do you have for casing
Two extrusion lines can produce all kinds of casing or pipe, tens of thousands of metres each day.
Do you supply free samples
Yes. Tell us which products you want to evaluate and your shipping details on WhatsApp and we will arrange samples.
What is the minimum order quantity
Small order quantities are available. Send your item list on WhatsApp and we will confirm quantity, packing and lead time.
Send Us The List And We Will Quote It
Tell us the casing metres, instrument models or tape codes you need. Free samples are available and small order quantities are accepted.




