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Liport-PMA Liport-PMA | Precision Ceramic Measuring Tool Factory. Expert in custom non-standard shaped precision components.

We specialize in precision grinding of zirconia ceramic gauge blocks, pin gauges, ring gauges, go/no-go gauges, and step masters.

Custom Double-Ended Plain Plug Gauge — Precision Bore Inspection, Built to Your DrawingsNeed to verify bore sizes with s...
09/10/2026

Custom Double-Ended Plain Plug Gauge — Precision Bore Inspection, Built to Your Drawings
Need to verify bore sizes with speed and accuracy? Meet our custom double-ended plain plug gauges.

Unlike standard off-the-shelf gauges, these are manufactured precisely to your dimensional requirements — as shown in our workshop, where we are producing a batch of custom sizes like Φ12.8H8, 5H9, and 16.2H9.

Why custom double-ended plug gauges?
✅ One tool, two functions — Go (T) end and No-Go end in a single compact tool
✅ Custom made — Available in any nominal diameter, tolerance grade, and length you specify
✅ Built for production floors — Fast, reliable pass/fail inspection without complex measuring instruments
✅ Rigorous QC & Authoritative Traceability — Every gauge is inspected and qualified in our factory's constant-temperature laboratory before shipment. Third-party CNAS metrology inspection reports can also be provided upon request to support your global compliance.

Whether you need a single custom size or a batch production run, we manufacture to your exact specifications.

Have a drawing or specific bore size? Send it to us for a quick quote.

09/10/2026

Need to verify bore sizes with speed and accuracy? Meet our custom double-ended plain plug gauges.

Unlike standard off-the-shelf gauges, these are manufactured precisely to your dimensional requirements — as shown in our workshop, where we are producing a batch of custom sizes like Φ12.8H8, 5H9, and 16.2H9.

Why custom double-ended plug gauges?
✅ One tool, two functions — Go (T) end and No-Go end in a single compact tool
✅ Custom made — Available in any nominal diameter, tolerance grade, and length you specify
✅ Built for production floors — Fast, reliable pass/fail inspection without complex measuring instruments
✅ Rigorous QC & Authoritative Traceability — Every gauge is inspected and qualified in our factory's constant-temperature laboratory before shipment. Third-party CNAS metrology inspection reports can also be provided upon request to support your global compliance.

Whether you need a single custom size or a batch production run, we manufacture to your exact specifications.

Have a drawing or specific bore size? Send it to us for a quick quote.

18/09/2026

Besides the measuring tools here, what else?Welcome to add~ block

02/09/2026

Need to verify internal threads quickly and reliably on the shop floor?

The Unified Thread Plug Gauge gives you fast, repeatable Go/No-Go pass-fail decisions — no complex measuring equipment required.

Full series coverage:

✅ UNC — Unified Coarse, for general-purpose fastening
✅ UNF — Unified Fine, for better holding power
✅ UNEF — Unified Extra Fine, for maximum precision
✅ UN — Constant-pitch series
✅ UNS — Special diameter/pitch combinations

Why use a thread plug gauge?

Instant pass-fail decisions — no measurement interpretation needed

Ideal for production in-process checks and incoming inspection

Helps detect tool wear and process drift through regular use

Built to ANSI/ASME B1.1 and B1.2 standards

Customization available — special diameters, pitches, and classes upon request.

Need a quote or have a specific thread standard in mind? Contact us.

Precision Gauges One-Stop Sourcing | Gauge Blocks, Pin & Thread Gauges, Custom Solutions | Liport Gage 2026 CatalogSourc...
28/08/2026

Precision Gauges One-Stop Sourcing | Gauge Blocks, Pin & Thread Gauges, Custom Solutions | Liport Gage 2026 Catalog
Sourcing precision measuring instruments for your machining, QC, or calibration lab?

Global buyers often face these challenges:
🔹 Sourcing gauge blocks, pin gauges, thread gauges, and plain gauges from multiple suppliers — inconsistent quality and high coordination costs?
🔹 Non-standard workpiece sizes — standard catalogs don‘t cover them, and you’re unsure which manufacturers truly handle custom work?
🔹 Long lead times and high costs from traditional Western brands — seeking reliable alternatives with comparable precision and certification?
🔹 Need CNAS/ILAC-MRA accredited calibration certificates — but many suppliers can‘t provide them?

Liport Gage — a professional manufacturer with 25+ years of experience, exporting worldwide — presents our 2026 Product Catalog.

Our Product Range:
✅ Gauge Blocks — Steel, Grade 0, 1, 2, metric & inch series
✅ Pin Gauges — Steel & ceramic, metric 0.01mm increment, inch series
✅ Thread Gauges — Metric, UN, NPT, BSPT, PG, RP, BSW, and more
✅ Plain Plug & Ring Gauges — Standard & custom bore sizes
✅ Concentricity Gauges — For shaft runout inspection
✅ Check Masters — For periodic thread gauge verification
✅ Ceramic Dial Gauge Bases — Rust-proof, shop-floor ready
✅ Ball Gauges — Ceramic standard balls for 5-axis CNC & CMM calibration
✅ Custom Gauges — Manufactured to your drawings

Why download this catalog?
📌 One-stop sourcing — reduce supplier management overhead
📌 Factory-direct pricing — 25 years of export experience
📌 Custom sizes accepted — non-standard is our standard
📌 CNAS/ILAC-MRA accredited certificates — internationally recognized
📌 Reliable lead times — a practical alternative to traditional sources

📥 Download the 2026 Catalog (PDF):
https://liport-gage.com/wp-content/uploads/2026/06/Catalog.pdf

Have specific requirements or need a quote? Contact us directly.

19/08/2026

五轴CNC精度校准，一颗球就够了 | One Ball, Precision Done Right

你的五轴CNC还在用金属校准球吗？

金属会生锈、会热胀冷缩、会磨损——每一次微小的变化，都在悄悄吃掉你的加工精度。

换成 陶瓷标准球，一次解决所有问题：

✅ ±1μm / ±2μm 直径精度
✅ 圆度低至 0.1μm（CMM）/ 0.25μm（五轴CNC）
✅ 镜面级表面，测头接触零阻力
✅ 陶瓷材质 → 零热膨胀、永不生锈、超耐磨
✅ 不锈钢测杆，多种底座可选
✅ 公制/英制全系列，特殊规格可定制

25年精密制造经验，服务航空航天、医疗、汽车行业。

精度，就是生产力。

🔗 了解更多：https://liport-gage.com/product/ceramic-standard-ball-for-5-axis-cnc-machine/

#陶瓷标准球 #精密测量 #智能制造

13/08/2026

We use gauge blocks to calibrate micrometers.
Then you may ask: who calibrates gauge blocks? Chicken‑and‑egg problem?
Factory micrometer cannot verify master gauge blocks.
Gauge blocks follow a traceability pyramid.
At the very top, laser interferometer measures master gauge blocks directly against the definition of "meter" — light wavelength, no reference block needed.
Every working gauge‑block traces back to this optical primary standard.
What do you think? Drop your comment👇

🧐Customized Cases: Ceramic Pin Gauge, 50.875 ±0.002 mmLarger dimensions pose greater challenges for tight‑tolerance mach...
11/08/2026

🧐Customized Cases: Ceramic Pin Gauge, 50.875 ±0.002 mm
Larger dimensions pose greater challenges for tight‑tolerance machining. Despite zirconia ceramic’s low thermal‑expansion property, errors tend to be amplified with increasing workpiece size, caused by machine deflection, clamping deformation and thermal expansion.
Custom large‑size ceramic gauge masters are available on request. We also provide custom‑made imperial‑size variants.

10/08/2026

Maintain accurate hole‑diameter inspection with our double‑end plain plug gauges (go‑no‑go type).
Manufactured to tight tolerance levels, these go‑no‑go plug gauges quickly verify whether machined holes are within acceptable dimensional limits.
Available in metric & imperial sizes, multiple material options for high‑volume production inspection.
Ideal for machining shops, quality control labs and manufacturing audit requirements.
Send us a message for your custom gauge specifications..

06/08/2026

Master Calibration & Application of 3-Point Internal Micrometer
Accurate bore measurement starts with standardized calibration.
In this demonstration, we complete zero-set calibration for a three-point internal micrometer using a certified master ring gauge (temperature-standardized calibration ring at 20°C) to eliminate systematic measurement error.
After precise calibration and trimming of the micrometer scale, the instrument is ready for on-site inner diameter inspection of finished tubular & hollow machined components.
Core application scenarios:
✅ Bearing inner hole dimensional verification
✅ Automotive cylinder sleeve precision testing
✅ Aerospace thin-wall part bore inspection
✅ Mold & hydraulic component dimensional QC
As a professional manufacturer of precision metrology instruments, we provide full-series internal micrometers, master ring gauges, plain pin gauges, concentricity runout testers and custom inspection fixtures for workshop quality control.
Feel free to reach out for product catalog and customized inspection solution quotation.

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Changan

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