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QPF-LNK / Assembled load path · bidirectional cycles

Preloaded Piezo Force Links

Specify a preloaded quartz force link when you need an assembled, calibrated sensing element with defined tension and compression interfaces. Preserve its internal preload through integration.

5–300 kN compression requests · Charge or IEPE configuration. Selection envelope; confirm the exact model.

Preloaded Piezo Force Links conceptual geometry; not a product photo
Concept geometry. Request confirmed dimensions and interfaces.
Before selecting QPF-LNK

Check force, mounting and signal limits together

Tension envelope

1–80 kN is the planned family request envelope. The tensile rating must be confirmed separately for the chosen compression configuration.

Installation

An internal preloaded assembly does not eliminate fixture alignment, mounting torque and off-axis load checks. Do not loosen the factory preload mechanism.

Calibration record

Request the individual sensitivity, direction, preload conditions, loading range, uncertainty and test setup. Accreditation is not assumed.

Cycle design

Provide pulse duration, repetition rate and combined loading. Fatigue life and overload limits need model-specific evidence; no unlimited-life claim.

Release the measurement chain with evidence

Request a configuration-specific drawing and calibration record. Confirm rated load, direction, preload, sensitivity, polarity, flat response band, thermal range and overload limits. Discuss the required acceptance test before freezing the order.

Can this measure a static load continuously?

Piezoelectric force measurement decays with system leakage and time constant. Share the cycle and allowed drift; for continuous dead-weight measurement use a suitable static sensing method.

Can I use an existing cable and conditioner?

Yes, if the full chain is verified for the chosen output, sensitivity, current or charge input, signal range, bandwidth, cable construction and connector. QPF accessory choices are optional.

The installation is part of the sensor

Preload, force shunt and installed sensitivity

A center bolt keeps the quartz ring compressed, but also bypasses part of the incremental force. Select preload from the exact sensor and hardware instructions. Around 20% of nominal force appears in some manufacturer guidance; it is not a universal QPF setting.

Check total compression with preload, tensile unloading, contact faces and bolt stiffness. Calibrate the installed assembly. Torque alone is not a direct measurement of preload.

Explore a preloaded QPF-LNK assembly →Read the mounting and bandwidth guide →
Concept section showing quartz ring compression and the parallel force path through its preload bolt
Concept section. Final hardware, preload and sensitivity require an approved installation.
Engineering RFQ / QPF-LNK

Describe the event.
We’ll review the chain.

Include the peak force and pulse duration, your mounting space and existing DAQ. For replacements, add the complete original model and sensitivity.

Request a configuration quote, CAD availability and the calibration documentation you need.

[email protected]

No checkout or automatic purchase. Accessory amounts are optional planning references; dimensions, compatibility, price and delivery require confirmation.

Complete the measurement chain

Selected accessory reference subtotal: USD 385. Any compatible verified equipment may be used. A force-ring stud kit requires installation approval.