# Vibromera

> Vibromera is a Portuguese manufacturer of portable rotor-balancing and vibration-analysis equipment. Its main product, the Balanset-1A, is a two-channel dynamic balancing machine and vibration analyser that balances rotors in their own bearings on site, without dismantling the machine. Vibromera also carries out on-site balancing and vibration diagnostics across Europe.

## Key facts about the Balanset-1A

- **Manufacturer:** Vibromera, Porto, Portugal (VAT PT314539760)
- **What it is:** a portable two-channel dynamic balancing machine and vibration analyser that balances rotors in their own bearings, on site, without dismantling the machine
- **Price:** complete kit EUR 1,975; OEM version EUR 1,735 (both excluding VAT)
- **Measurement:** 2 vibration channels + 1 tachometer; 0.02–80 mm/s RMS; 5–1000 Hz; 100–100,000 rpm; phase 0–360° at ±1°; 1 or 2 correction planes
- **Build:** IP54, powered over USB from the laptop, complete kit under 5 kg, 2-year warranty
- **Standards:** balancing tolerances to ISO 21940-11 (ISO 1940-1); vibration evaluation zones to ISO 20816 / ISO 10816
- **Balancing service:** on-site work from Porto: vibration diagnostics EUR 300 per machine, balancing from EUR 250 by rotor size, minimum EUR 500 per visit

## Products

- [Our Products](https://vibromera.uk/products/): Vibromera products: the portable Balanset-1A balancing machine and vibration analyser, complete kit EUR 1,975, OEM EUR 1,735, plus sensors and accessories.
- [Balanset-1A OEM: Dynamic Balancing Device for System Integration](https://vibromera.uk/products/balanset-1a-oem): The Balanset-1A OEM is a balancing device for integration into custom systems. Full functionality for machine builders and system integrators.
- [Balanset-1A: Portable Dynamic Balancing Machine](https://vibromera.uk/products/balanset-1a): Discover the Balanset-1A, a portable device for dynamic balancing and vibration analysis. Ideal for on-site use on fans, pumps, and more.

## Applications

- [Application Areas](https://vibromera.uk/applications/): Learn how the Balanset-1A balancing machine is used in various industries: general industry, automotive, agriculture, and more.

## Services

- [Services & Support](https://vibromera.uk/services/): Vibromera offers professional services: on-site balancing of industrial equipment, modernisation of outdated balancing machines, and technical training.
- [Contact](https://vibromera.uk/knowledge-base/services/contact): Get in touch for a consultation on equipment balancing. Office in Porto, Portugal. Email: info@vibromera.eu, Phone: +372 5836.
- [Dynamic equipment balancing services](https://vibromera.uk/knowledge-base/services/field-balancing): Dynamic balancing services for industrial equipment. On-site balancing with the Balanset-1A, workshop balancing on machines. Fans, pumps, motors, turbines.
- [How much does on-site balancing cost?](https://vibromera.uk/balancing-cost): How much does field balancing cost? Transparent tariff: diagnostics €300, balancing from €250 by rotor size, travel and multi-machine discounts.

## Knowledge Base

- [UK rotor balancing & vibration guides](https://vibromera.uk/knowledge-base/): UK expert guides on dynamic rotor balancing and vibration diagnostics for Balanset-1A users: field methods, ISO balance grades, equipment types and economics.
- [Dynamic Balancing from A to Z: The Complete Guide to Eliminating Vibration and Unbalance](https://vibromera.uk/knowledge-base/pillar-page): A comprehensive guide to dynamic rotor balancing: the physics of unbalance, methods for eliminating vibration, equipment, ISO balance quality grades.
- [Glossary](https://vibromera.uk/knowledge-base/glossary): Definitions of key rotor-balancing and vibration-diagnostics terms: G grade, residual unbalance, FFT, BPFO/BPFI/BSF/FTF and critical speed.

## Topic Cluster

- [5 Causes of Industrial Fan Vibration and How to Fix Them](https://vibromera.uk/knowledge-base/cluster/fan-vibration-causes): Industrial fan vibration comes from five causes: impeller unbalance, worn bearings, shaft misalignment, mechanical looseness and structural resonance. Unbalance is the most common and shows at 1× running speed; misalignment shows at 2× and axially, and cannot be balanced out.
- [Balance Quality Grades under ISO 21940-11: How to Choose the Right Tolerance for Your Equipment](https://vibromera.uk/knowledge-base/cluster/accuracy-classes-gost): A balance quality grade G equals the permissible specific unbalance times angular speed in mm/s: crushers G16, fans and pumps G6.3, gas and steam turbines G2.5, spindles G1.0 or G0.4. The tolerance follows from e_per = (G × 9549) / n, then U_per = e_per × M.
- [Balancing Agricultural Machinery: A Complete Guide to Improving Reliability on the Farm](https://vibromera.uk/knowledge-base/cluster/agricultural-equipment): On farm machinery unbalance shows as vibration and droning, bearings running hot, fasteners working loose and uneven knife or bar wear, most often on threshing drums turning at 500–1,000 rpm. Knife-edge balancing removes only static unbalance; dynamic unbalance needs two planes.
- [Balancing Centrifuges and Separators: Precision Work for Safety-Critical Machinery](https://vibromera.uk/knowledge-base/cluster/centrifuges): Centrifuge and separator drums run at 5,000–15,000 rpm, where 5 g of unbalance at a 200 mm radius produces about 1,100 N of force at 10,000 rpm. ISO 1940-1 lists them under G6.3, but high-speed drums are held to G1–G0.4 and test runs must be made inside a protective enclosure.
- [Balancing Crushers and Mills: Working in Extreme Conditions](https://vibromera.uk/knowledge-base/cluster/crushers-grinders): Crusher and mill rotors are balanced by actual condition, not to a schedule: after replacing hammers or beaters, when vibration appears, and every 3–6 months. Clean off all build-up first and replace hammers in matched opposite pairs, within 100 g, or as a full set.
- [Balancing Grain Combine Harvesters: Three Critical Assemblies](https://vibromera.uk/knowledge-base/cluster/combine-harvesters): Three combine assemblies need balancing before harvest: the threshing drum (600–1,200 rpm, 200–500 kg), the straw chopper (3,000–4,000 rpm) and the cleaning fan. Balance the chopper and fan annually, two to three weeks ahead of the season, and the drum every 2–3 years at overhaul.
- [Balancing Mulcher Rotors: A Guide for Forestry and Agriculture](https://vibromera.uk/knowledge-base/cluster/mulchers): Mulcher rotors turn at 1,000–3,000 rpm, flail mowers up to 4,000, and on a 500 kg rotor a 30 g difference at a 300 mm radius is already serious unbalance. Balance forestry mulchers every 200 engine hours or at each cutter change, agricultural ones once a season, flail mowers every 100–150 hours.
- [Balancing Shafts, Drive Shafts and Couplings](https://vibromera.uk/knowledge-base/cluster/shafts-couplings): A shaft with L/D under 3 behaves as a rigid body and takes standard two-plane balancing; above L/D 10 it bends as it turns and may run above its first critical speed, where standard balancing fails. Keep the working speed at least 20% away from the critical speed, found by a coast-down test.
- [Compressor Balancing: Ensuring the Reliability of Compressed-Air Supply](https://vibromera.uk/knowledge-base/cluster/compressors): Compressor rotors are balanced to G2.5–G6.3 for screw types at 3,000–10,000 rpm, G2.5 for centrifugal at 10,000–30,000 rpm and G1–G2.5 for turbochargers at 50,000–150,000 rpm. Correction is by removing metal only — welding weights onto compressor rotors is prohibited.
- [Electric Motor Armature Balancing: Why It Is Essential After Rewinding and Repair](https://vibromera.uk/knowledge-base/cluster/motor-balancing): Rebalancing is mandatory after rewinding: a 5–10 g difference in winding mass at a 100–150 mm radius already creates noticeable unbalance. Grades are G6.3 up to 950 rpm and G2.5 above it; a peak at 100 Hz on a 50 Hz supply is magnetic, and balancing will not remove it.
- [Expert balancing tips and tricks](https://vibromera.uk/knowledge-base/cluster/practical-tips): A trial weight of 0.5–2% of rotor mass is the starting estimate, and it only counts if it changes vibration by at least 20% or phase by at least 30°. Mark 0° where the trial weight was fitted, not at the reflective tachometer mark, then 90°, 180° and 270° in the direction of rotation.
- [Gearbox and Gear Balancing](https://vibromera.uk/knowledge-base/cluster/gearboxes): A gearbox needs its input, intermediate and output shafts balanced as assemblies with their gears, to grade G6.3–G16, during a major overhaul. Correct by drilling the shaft body or the gear hub — never the toothed rim or the area near the bearing seats.
- [How to dynamically balance a rotor in its own bearings with the Balanset-1A](https://vibromera.uk/knowledge-base/cluster/task-field-balancing-howto): Balancing a rotor in its own bearings with the Balanset-1A takes four runs: Run 0 with no weight, trial weights in planes 1 and 2, then a trim run checked against ISO 1940. Preparation decides 80% of the result — hold the speed identical across runs and pick a trial weight shifting amplitude 20% or phase 30°.
- [How to Write a Technical Specification for Balancing Services](https://vibromera.uk/knowledge-base/cluster/how-to-order-balancing): A balancing quote needs five essentials: equipment type, rotor mass in kg, working speed in rpm, machine power in kW and the installation address. Ask the provider which ISO standard and grade they achieve, whether weights and fitting are included, and how long the warranty runs.
- [In-Situ Balancing vs. Workshop Balancing: Which to Choose for Your Equipment?](https://vibromera.uk/knowledge-base/cluster/field-vs-workshop-balancing): Workshop balancing needs full dismantling and takes days or weeks, but gives the highest accuracy on a single part; in-situ balancing takes 2–4 hours and covers the whole system — foundation, bearings, couplings, alignment. Pick the workshop for G1.0 or tighter, in-situ when downtime is critical.
- [Machine-Tool Spindle Balancing: Maximum Precision for Flawless Machining Quality](https://vibromera.uk/knowledge-base/cluster/spindles): Spindle balance grades run G2.5 for lathes and mills at 1,000–6,000 rpm, G1 for grinders at 10,000–30,000 rpm and G0.4 for precision grinders at 30,000–60,000 rpm. At 30,000 rpm just 1 g of unbalance at a 50 mm radius makes about 490 N, seen as waviness, lobing and tool run-out.
- [Monitoring and Balancing Draught Plant and Pumping Equipment in Power Generation](https://vibromera.uk/knowledge-base/cluster/industry-energy): In power generation the critical assets are boiler flue-gas and forced-draught fans and feed, circulation and condensate pumps, where an hour of emergency boiler shutdown costs €3,800–€11,500. One 200 kW flue-gas fan was balanced on site in 3 hours, from 8.0 to 1.2 mm/s.
- [Pump Balancing: How to Reduce Vibration and Extend the Life of Mechanical Seals](https://vibromera.uk/knowledge-base/cluster/pump-balancing): Impeller unbalance causes shaft runout that destroys mechanical seals: on a boiler feed pump seal life rises from 6–8 months to 2–3 years after balancing, with seals costing €600–2,000 each. Fix misalignment, bearing play and cavitation first — balancing cures none of them.
- [Shaft Alignment: Why Even Perfect Balancing Cannot Replace It](https://vibromera.uk/knowledge-base/cluster/shaft-alignment): Misalignment shows as a dominant second harmonic (2×) with high axial vibration, while unbalance shows at 1× with low axial vibration — and no amount of balancing removes it. Align first, to 0.01–0.02 mm with a laser system in 1–2 hours, then balance only if 1× vibration remains.
- [The Economic Benefit of Balancing: Calculating the Payback with Real Examples](https://vibromera.uk/knowledge-base/cluster/economic-benefits): Balancing typically pays for itself within a few months: a €1,400 on-site job on a 200 kW flue-gas fan cut vibration from 8 to 1.2 mm/s and saved about €10,500 in the first year. Halving vibration multiplies bearing life eightfold, because life falls with the cube of load.
- [The In-Situ Balancing Process: What the Specialist Does On Your Equipment](https://vibromera.uk/knowledge-base/cluster/field-balancing-process): In-situ balancing runs in five stages — diagnostics, sensor setup, trial-weight measurements, weight correction and a verification run — taking 2–4 hours with 3–4 machine start-ups. The customer receives a report with before and after vibration, the masses fitted, and a 3–6 month warranty.
- [Turbine Balancing: Mission-Critical for Power Generation](https://vibromera.uk/knowledge-base/cluster/turbines): Turbine rotors run at 3,000–30,000 rpm, and a CHP steam rotor weighs 20–100 tonnes. Large power-station rotors are flexible and need staged balancing at a specialist centre — 500–1,000 rpm first, then up to working speed; rigid rotors such as turbochargers balance in their own bearings.
- [Types of Unbalance: Static, Couple and Dynamic — What Is the Difference?](https://vibromera.uk/knowledge-base/cluster/types-of-imbalance): Unbalance comes in three forms: static (one heavy spot, visible at rest), couple (two masses 180° apart in different planes, invisible at rest) and dynamic, the combination found in most industrial rotors. Narrow discs with L/D below 0.25 need one correction plane; above L/D 0.5 you need two.
- [Unbalance correction methods: welding, drilling or weights?](https://vibromera.uk/knowledge-base/cluster/correction-methods): Correction mass is fixed in one of three ways: welding steel plates on (steel and cast-iron rotors), removing metal by drilling or milling (high-speed rotors, armatures, spindles), or bolted removable weights. Fit half the calculated mass first and add the rest only if vibration drops without the phase flipping.
- [Vibration Diagnostics of Rolling-Element Bearings: How to Predict a Failure Before It Happens](https://vibromera.uk/knowledge-base/cluster/bearing-diagnostics): Rolling-element bearing faults appear at four non-synchronous frequencies: BPFO (outer race), BPFI (inner race), BSF (rolling element) and FTF (cage, 0.35–0.45× shaft speed). Sidebands spaced at 1× around the peaks mark an inner-race fault; spectra warn 2–6 months before failure.
- [Vibration diagnostics with the Balanset-1A: a practical guide for beginners](https://vibromera.uk/knowledge-base/cluster/task-vibration-diagnostics-howto): Four faults have distinct spectral fingerprints: unbalance peaks at 1× and is mainly radial, misalignment at 2× with high axial vibration, looseness as a forest of harmonics, bearing faults at non-synchronous frequencies. Trends beat absolute values — any peak doubling against the baseline signals a developing fault.
- [Vibration troubleshooting guide](https://vibromera.uk/knowledge-base/cluster/troubleshooting-guide): The dominant peak names the fault: a clean 1× is unbalance, 1× with a forest of harmonics is mechanical looseness, a dominant 2× in the axial direction is misalignment, and non-synchronous high-frequency peaks are a bearing fault. Measure radially and axially on the bearing housings after cleaning and tightening.
- [What Resonance Is and Why It Can Destroy Your Equipment](https://vibromera.uk/knowledge-base/cluster/resonance-explained): Resonance occurs when running speed coincides with a natural frequency of the rotor and supports, and vibration then grows 10–20 times even with minimal unbalance. Standard balancing cannot fix it: move the working speed clear by 20–30%, or change the structure's stiffness, mass or supports.

## Blog

- [Balancing & vibration analysis blog](https://vibromera.uk/blog/): Practical guides on dynamic balancing and vibration analysis: fans, mulchers, rotors, ISO 1940 tolerances and modernising machines with the Balanset-1A.
- [How to Balance a Fan: Step-by-Step Guide](https://vibromera.uk/blog/fan-balancing-guide): Complete guide to balancing industrial fans. Learn static vs dynamic balancing methods, equipment needed, and step-by-step field balancing procedures.
- [ISO 1940 Tolerance Calculator: A Practical Guide](https://vibromera.uk/blog/iso-1940-tolerance-calculator): Learn how to use the integrated ISO 1940 tolerance calculator in the Balanset-1A to professionally assess and document balancing quality.
- [Mulcher Balancing: Vibromera Services](https://vibromera.uk/blog/balancing-mulchers-services): Vibromera provides professional on-site dynamic balancing for mulcher rotors and similar equipment, correcting static and dynamic unbalance on site.
- [Old Treasures, New Tech: Modernising Your Balancing Machine](https://vibromera.uk/blog/modernize-balancing-machine): Learn how to modernise your old soft-bearing balancing machine with the Balanset-1A OEM measuring system at a fraction of the cost of a new machine.
- [Practical Guide: Balancing Flail Mulchers & Forestry Mulchers](https://vibromera.uk/blog/balancing-mulchers-guide): A comprehensive guide to balancing mulcher rotors. Understand the dangers of vibration and learn how to avoid common problems.
- [Step-by-Step Guide: Balancing with the Balanset-1A](https://vibromera.uk/blog/field-balancing-guide): A detailed step-by-step guide to performing professional field balancing in own bearings using the Balanset-1A device.
- [The Difference Between Static and Dynamic Unbalance](https://vibromera.uk/blog/static-dynamic-unbalance): Understand the difference between static and dynamic unbalance, with clear explanations and examples. Learn why dynamic balancing matters for most rotors.
- [The True Cost of Vibration: Does an In-House Balancing Machine Pay Off?](https://vibromera.uk/blog/roi-balancing-equipment-analysis): A detailed analysis of the financial and non-financial costs of machine vibrations. Learn how quickly an investment in your own balancing equipment pays off.
- [Theory & Practice of Dynamic Balancing: A Comprehensive Guide](https://vibromera.uk/blog/theory-practice-dynamic-balancing): A comprehensive guide to the theory and practice of dynamic balancing: causes of vibration, types of unbalance, and the principles of correct balancing.
- [What is Rotor Unbalance and Why is it Dangerous?](https://vibromera.uk/blog/what-is-unbalance): A detailed explanation of what static and dynamic unbalance is, its causes, and the serious consequences of untreated vibrations for machinery.

## Company

- [Portable rotor balancing & vibration analysis](https://vibromera.uk/): Vibromera offers professional dynamic balancing and vibration analysis. Discover the portable Balanset-1A, accessories and services to reduce vibration.
- [Cancellation Policy](https://vibromera.uk/cancellation-policy): Information on the right of withdrawal for products purchased from Vibromera.
- [Choose Your Plan](https://vibromera.uk/pricing): Choose the best plan for your needs. From basic access to premium promotional packages with Google Ads.
- [Contact Vibromera](https://vibromera.uk/contact): Contact Vibromera for advice on the Balanset-1A and on-site balancing services. Email, phone or WhatsApp support from our engineers in Porto, Portugal.
- [Imprint & Legal Notice](https://vibromera.uk/imprint): Legal information and imprint of Vibromera.
- [Our Story: From a Niche Solution to a Global Tool](https://vibromera.uk/about): Learn more about Vibromera, the story behind the development of Balanset-1A, and our mission to make professional balancing technology accessible to everyone.
- [Privacy Policy](https://vibromera.uk/privacy-policy): Privacy Policy of Vibromera.