
Vibrating Wire Strain Gauges for Bridge, Tunnel & Dam Monitoring: Complete Selection Guide
The global construction industry is experiencing a massive surge in large-scale infrastr...

Through Hole Load Cells by Kingmach
When bolted joint forces need monitoring, a through hole load cell fits right in. These sensors measure tension or compression directly on fasteners, anchor bolts, or cables without complex fixturing. Kingmach designs them for fieldwork and factory floors alike, with stainless steel bodies and strain gauge internals that hold up under tough conditions. The donut shape slips over a stud or rod, making setup fast. Engineers working on pile load tests, rock bolt monitoring, or press force checks often run into space constraints—here, a load cell with a clean center bore solves the layout puzzle. Kingmach keeps multiple bore sizes and capacities in stock, and accommodates custom ranges when standard models fall short. Each unit gets temperature compensation and shunt calibration as standard, so readings stay consistent season after season. With a mid-range price point and global distribution, replacement parts and technical support arrive without long wait times.
Technical Detail
Kingmach’s through hole load cells bring together robust construction and practical installation. The body is machined from high-strength stainless steel, sealed to IP67 or higher as an option, and available in capacities commonly used for bolt tension monitoring, cable stays, and tie-back anchors. The central hole accepts the structural member directly, eliminating adapter plates and reducing stack height. Output is typically 2 mV/V, compatible with most industrial indicators, and optional 4-20 mA or digital outputs simplify integration into PLC systems. Because every project has unique demands, Kingmach offers bore diameters from less than half an inch up to several inches, and can adjust the outer diameter and height to match existing space envelopes. Customers who need non-standard electrical connectors or extended temperature ranges will find that custom orders are handled without excessive lead times or cost premiums. The strain gauge bridge uses metal foil elements bonded under controlled conditions, and each cell undergoes a full scale, zero balance, and creep test before delivery. For monitoring post-tensioned cables or foundation anchors, Kingmach provides matched readout instruments and data loggers, often bundled with the sensors to simplify procurement. Field service teams can access remote diagnostics if data anomalies crop up, and local distributors carry common accessories like load buttons, rod ends, and mating cables. This practical support network helps keep downtime short. When a standard off-the-shelf part just does not fit, Kingmach’s engineering team works from a dimensioned sketch to quote a build that meets the spec, without pushing buyers into overly expensive premium lines.
News

The global construction industry is experiencing a massive surge in large-scale infrastr...

Cable-stayed bridges, pre-stressed concrete decks, and dam anchors rely on precisely cal...

The Type of Load Cell Is Not a Product Choice—It Is an Engineering Decision In ...
Products

Smart Vibrating Wire PiezometerSmart Piezometers (VW) JMZX-55XXHAT
View Details
Axial Force Load Meter ( VW & Smart Type)JMZX-38XXHAT
View Details
Solid load cell JMZX-34XXHAT、35XXHAT、36XXHAT
View DetailsFAQ
Standard inventory covers bore diameters from 10 mm to over 100 mm, with many intermediate steps. For special sizes, our team will confirm feasibility and lead time based on your drawing.
Yes, with the right sealing option. We offer IP67 and IP68 rated versions, stainless steel bodies, and conformal coating on internal electronics to handle wet, dusty, or freeze-thaw environments.
Our standard through hole load cells output a millivolt signal, which works with most strain gauge indicators, PLC modules, and wireless nodes. We also supply 4-20 mA transmitters and digital units for direct integration.
Combined non-linearity, hysteresis, and repeatability usually falls within 0.1% to 0.25% of full scale, depending on the model. Each cell ships with a calibration certificate traced to national standards.
If modifications are limited to bore size or mounting dimensions, production often adds only 2-3 weeks to our standard lead time. Complex changes like special output formats may require more engineering review, but we keep the timeline transparent from the first quote.
Share your product type, target capacity, and application requirements. Our team can review the details and recommend a practical next step.
If you are interested in our products or want to become our partner.
Please leave your contact information, our team will contact you as soon as possible.
Mail: [email protected]
Contact Us: +8613808434127
Address: No. 188 Tongzipo West Rd, Changsha, Hunan, China