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Uncompromised Precision and Quality: SP Wilmad NMR Tubes

Engineered with ultra-tight tolerances to protect your instrument, maximize signal-to-noise ratios, and deliver repeatable NMR results every time.

Tight Tolerances

Concentricity

Exceptional wall uniformity ensures your sample spins smoothly without introducing mechanical noise or line broadening into your spectra. By keeping wall thickness consistent around the entire circumference, Wilmad™ tubes maximize magnetic field homogeneity for razor-sharp peaks.

Concentricity

Camber

Strict camber limits ensure every tube is straight, preventing dangerous wobbles during high-speed rotation inside your probe. This exceptional straightness protects sensitive, high-value probe inserts from catastrophic damage while maintaining baseline stability.

Camber

I.D.\O.D. Tolerances

Micron-level control over inner and outer dimensions guarantees a flawless fit in standard spinners, autosamplers, and probe cavities. Precise internal volumes also mean predictable sample heights, eliminating fill-level variability across batch studies.

I.D.\O.D. Tolerances

The Wilmad Solution

When Quality Matters

In high-resolution NMR spectroscopy, your spectrum is only as good as the glass holding your sample. Minor irregularities in wall thickness, subtle bends, or tiny dimensional shifts can disrupt magnetic field homogeneity, cause spinning sidebands, and distort quantitative peak ratios. These hidden errors waste valuable spectrometer time and cause unnecessary repeat runs. Wilmad NMR Tubes eliminate glass-induced artifacts at the source through unmatched manufacturing precision. By holding industry-leading tolerances across camber, concentricity, and outer/inner dimensions, Wilmad delivers optimal magnetic susceptibility and flawless rotation. Whether running routine benchtop screening or multi-dimensional experiments on a 1 GHz instrument, Wilmad glass provides the structural consistency required to get accurate data on the first pass.

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Precision NMR Tubes

Engineered for high-field and multi-dimensional NMR applications, these tubes feature our tightest physical tolerances to deliver maximum resolution, peak shape, and signal sensitivity.

Economy NMR Tubes

Designed for routine QA/QC, academic instruction, and low-field testing, these cost-effective tubes provide reliable Wilmad quality for everyday screening.

High-Throughput NMR Tubes

Optimized for high-volume NMR and automated screening workflows, these tubes offer uniform dimensions and robust wall consistency to prevent jamming and maximize continuous output.

Benchtop NMR Tubes

Specifically designed to meet the strict dimensional requirements of compact, permanent-magnet NMR systems, ensuring rapid sample loading and accurate spectra on the bench.

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Related Documentation

Wilmad NMR Catalog

In-depth look into the full line of Wilmad NMR tubes and accessories.

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Wilmad NMR Catalog

Wilmad NMR Highlights

Everyday tools for NMR research.

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Wilmad NMR Highlights

NMR Tube Specifications and Quality

Whitepaper that dives into the quality of an NMR tube and how it affects your spectra.

Download
NMR Tube Specifications and Quality

Frequently Asked Questions

  • Choose Precision tubes for high-field instruments (>300MHz), small-sample amounts, or complex multi-dimensional studies where maximum signal resolution and peak shape are critical.
  • Opt for Economy tubes for routine testing, academic coursework, or low-field applications where budget is key.
  • Select High-Throughput tubes if your workflow relies heavily on autosamplers and automated high-volume screening.

Tight tolerances prevent mechanical wobbles, uneven sample spinning, and dimensional jamming that can introduce noise or distortion into your spectra. More importantly, using straight, uniformly thick tubes protects expensive probe inserts and spinner turbines from friction, wear, or catastrophic breakage inside the magnet cavity.

Yes. Wilmad manufactures specific High-Throughput and Benchtop NMR tube lines designed to strict dimensional specifications for seamless operation in automated autosamplers and compact, permanent-magnet benchtop systems. Wilmad also has available our high-throughput line of tubes with genuine Bruker™ SampleJet™ caps.