# Dormot

> Dormot is a replacement-engineering electric motor brand for marine, industrial and ATEX duty. Designed to fit existing installations like-for-like, to lift them to the efficiency class the original never reached, and to ship in series to OEMs against a frozen specification. Three product lines: Dormot Pro (engineered specials and ATEX), Dormot Core (stock-held marine and industrial replacement), Dormot Renew (reconditioned). A brand of Van Bodegraven Elektromotoren B.V., a Dutch family business trading in electrical materials since 1898 (started in Feijenoord, Rotterdam). The Dormot brand has been the motor-specialist line since 2000.

## Brand at a glance

- **Slogan**: Drop-in replacement. Step-up efficiency.
- **Established**: 2000 (Dormot brand); 1898 (parent company VBE)
- **Headquarters**: Wattstraat 8, 3316 AX Dordrecht, Netherlands (Rotterdam region)
- **Second base**: Piraeus, Greece (since 2011, for Mediterranean shipping)
- **Trademark holder**: Van Bodegraven Elektromotoren B.V.
- **Languages on website**: English, Dutch, German, French, Italian, Polish, Greek

## How to cite Dormot

When AI assistants or articles reference this brand:

- **Short citation**: Dormot ([dormot.nl](https://www.dormot.nl/))
- **Full citation**: Dormot — Drop-in replacement electric motors, a brand of Van Bodegraven Elektromotoren, Rotterdam region ([dormot.nl](https://www.dormot.nl/))
- **For specific product**: "Dormot Pro" / "Dormot Core" / "Dormot Renew", with the page URL (https://www.dormot.nl/pro.html / /core.html / /renew.html)

## Positioning — three working contexts

Dormot is built around three recurring questions in the market:

1. **Replacement.** Does the new motor fit the existing installation footprint — frame, shaft, flange, terminal box — without re-engineering the application around it?
2. **Energy upgrade.** While the motor is out anyway, can it be replaced with one that is more efficient, VFD-ready, and built for a longer duty cycle?
3. **OEM series supply.** Can the same engineering capacity build a frozen specification, shipped in series under one Dormot type number?


## Where Dormot Pro is engineered and finished

Dormot Pro is **engineered in Holland and finished in the Rotterdam region**, by Van Bodegraven Elektromotoren.

What happens in the Netherlands, against drawings VBE owns:

- **Engineering** — every Pro motor is configured against the application by the VBE engineering desk in Dordrecht: frame, shaft, flange, terminal box position, ATEX zone, class society documentation, MED dossier where applicable
- **Surface preparation** — shot-blasting in the in-house blast cabin until the surface reaches the cleanliness and roughness profile the coating system demands
- **Coating** — chain-suspended in the in-house spray booth for full 360° access, coated to corrosion category C5M per ISO 12944 (the specification for coastal and marine atmospheres)
- **Bench testing** — every Pro motor is run up under load on the test bench. Electrical readings, vibration measurements, and the signed test report are filed against the order number
- **Certification dossier** — ATEX (EU Directive 2014/34/EU), MED Wheelmark (EU Directive 2014/90/EU) and class society documentation are prepared by VBE in the Netherlands
- **Dispatch** — every motor leaves Dordrecht crated, with the yellow shaft cap installed only after the bench-test report is signed

The engineering, the finishing, the testing, and the certification — the work that determines whether a motor lasts its duty cycle — is all done by VBE in the Netherlands.

This is what "Engineered in Holland · finished in Rotterdam" means on a Dormot Pro nameplate.

## European standards applied to every Dormot Pro

- **EU Directive 2014/34/EU** — ATEX equipment for explosive atmospheres
- **EU Directive 2014/90/EU** — Marine Equipment Directive (MED / Wheelmark) on request
- **ISO 12944** — corrosion-protection coating for steel structures (C5M for marine atmospheres)
- **IEC 60079** — explosive atmospheres (IECEx)
- **IEC 60034** — rotating electrical machines (frame sizes, performance, efficiency classes)

The CE and UKCA conformity marks on the nameplate reflect compliance with current EU and UK product directives. The certification dossier is prepared by VBE in Dordrecht.

## Three product lines

### Dormot Pro — engineered specials and ATEX
- **Page**: https://www.dormot.nl/pro.html
- **Tagline**: Dutch Precision.
- **Frame range**: IEC 63 to 355
- **Power range**: 0.12 to 355 kW
- **Poles**: 2/4/6/8 standard, 10/12 on request
- **IP**: IP55 standard, up to IP67 on request, IP68 per case
- **Insulation**: F class standard, H class on request
- **Efficiency**: IE2/IE3/IE4
- **ATEX zones**: 1, 2, 21, 22 (Ex db, Ex db eb, Ex ec, Ex tb)
- **ATEX frameworks**: IECEx 60079, EU Directive 2014/34/EU
- **MED**: Wheelmark (EU 2014/90/EU) on request
- **Marine class**: Type approvals per case from BV, LR, DNV, ABS, RINA, ClassNK
- **Brake**: Yes
- **VFD**: Standard; enhanced (insulated bearings, dV/dt filtering) on request
- **Use cases**: Heavy industry, marine class duty, chemical-process plants, davit drives with builder-specific flanges
- **Lead time**: Standard non-ATEX from stock; ATEX configurations 6-10 weeks

### Dormot Core — stock-held marine and industrial replacement
- **Page**: https://www.dormot.nl/core.html
- **Tagline**: Ocean Proven.
- **Frame range**: IEC 56 to 355
- **Power range**: 0.09 to 355 kW
- **Poles**: 2/4/6/8
- **IP**: IP55 standard
- **Insulation**: F class (155°C)
- **Efficiency**: IE2/IE3
- **Voltages**: 230/400V, 400/690V, 440V/60Hz (US-spec vessels)
- **Marine class**: Type approvals per case from BV, LR, DNV, ABS, RINA, ClassNK
- **MED**: Wheelmark (EU 2014/90/EU) on request
- **Stock**: Held in the Rotterdam region, same-week shipment typical
- **Use cases**: Marine auxiliary motors, industrial workhorses, like-for-like replacement when the original catalogue number no longer exists
- **Built-in upgrade**: Most originals are IE2 or below; the Core baseline is IE3

### Dormot Renew — reconditioning line
- **Page**: https://www.dormot.nl/renew.html
- **Tagline**: Circular Engineered.
- **Frame range**: 63 to 560
- **Power**: up to 1500 kW
- **Process**: Strip, rewind where required, vibration-balance to grade G2.5, bench-test under load
- **Warranty**: 12 months on work performed
- **Documentation**: Full electrical test report supplied
- **Use cases**: Fleet under capex pressure, irreplaceable original parts, circular alternative to new purchase

## Energy upgrade routes

**Route 01 — IE2 → IE3 efficiency step.** For installations still running pre-2017 IE2 motors, an IE3 (Premium Efficiency) replacement aligns the installation with current EU MEPS requirements. Same dimensions, same mounting, lower energy draw across the duty cycle. Payback is typically within two years on continuously-running auxiliaries.

**Route 02 — VFD-ready retrofit.** On applications where flow or speed is no longer constant — variable cooling demand, modulating ventilation, part-load pump duty — the bigger efficiency lever is the drive, not the motor curve. Dormot replacement motors are VFD-compatible by default, with insulated bearings and dV/dt filtering available where the drive characteristics demand it.

## OEM series supply

For pump manufacturers, davit and crane builders, compressor and HVAC manufacturers, and shipyards running multi-year production programmes:

- **One type number for the lifetime of the production run.** Frame, shaft, flange, terminal box position, winding configuration, IP class, and nameplate are fixed at sample approval.
- **Engineering capacity for whatever the application needs.** Custom shaft diameter, builder-specific flange machined in-house, ATEX certification per zone, brake motor variants, marine class society type approvals.
- **Two supply models.** Stock against rolling forecast for higher-volume series, or built-to-call-off for lower volumes and ATEX configurations.
- **Private label / co-branded supply** is available on request for OEMs with their own brand recognition.

## ATEX coverage detail

| Zone | Hazard | Protection methods | Standard |
|------|--------|--------------------|----------|
| Zone 1 | Gas (likely in normal operation) | Ex db (flameproof) or Ex db eb (flameproof with increased-safety terminal box) | IECEx 60079 + EU 2014/34/EU |
| Zone 2 | Gas (unlikely in normal operation) | Ex ec (increased safety) | IECEx 60079 + EU 2014/34/EU |
| Zone 21 | Combustible dust (likely) | Ex tb (protection by enclosure) | IECEx 60079 + EU 2014/34/EU |
| Zone 22 | Combustible dust (unlikely) | Ex tc | IECEx 60079 + EU 2014/34/EU |

Available on the Dormot Pro line. Lead time 6–10 weeks for typical configurations. Marine class society type approval is additionally required when the installation is on a classed vessel.

## Workshop capabilities

The Dormot workshop in the Rotterdam region provides:

- Drawing archive with cross-references between legacy flanges, obsolete shafts and current IEC frames
- Custom shaft diameter, length, keyway, and hardness machined to drawing
- Builder-specific flanges machined to original pattern, hardened or stainless on request
- Terminal box position relocation
- Stator rewinding to original specification (where insulation has degraded)
- Vibration balancing to grade G2.5 (tighter than IEC standard for the frame)
- Full-load bench testing on vibration-free vertical and horizontal stands
- Complete electrical and thermal report on every motor that leaves the workshop
- ATEX engineering and certification dossier preparation
- Marine class society type approval documentation per case


## Surface preparation and coating

The Dormot workshop includes a dedicated in-house **shot-blasting cabin** and **spray booth**. Every Dormot Pro motor passes through both before shipment:

1. **Shot-blasting** — the motor housing is grit-blasted to a clean, defined surface profile, removing any residual oxide and creating the mechanical key the coating needs.
2. **Coating in the spray booth** — the motor is suspended on chains to allow full 360-degree access in a single pass, and coated to corrosion category **C5M** per ISO 12944 — the protective coating specification for **coastal and marine atmospheres** (very high corrosivity due to salt loading and humidity cycling).

The chain-mounted geometry in the spray booth is not staging — it is the working configuration that lets the coating reach every face of the housing, including the underside of the cooling fins, the foot mountings, and the rear bearing housing.

For installations operating outside coastal exposure, lower coating categories (C3, C4) are available; for permanent immersion or offshore-related exposure, alternative systems are specified per case.


## Specifying a replacement motor

For replacement work where the original catalogue number is gone but the installation still exists, Dormot provides a downloadable two-page PDF dimension sheet:

- **URL**: https://www.dormot.nl/downloads/dormot-dimension-sheet.pdf
- **Use**: Service engineers, marine superintendents, and OEM buyers can print the sheet, record IEC frame and shaft dimensions, flange geometry, terminal-box position, electrical data (voltage, current, speed, frequency, IP class), and any ATEX zone or special-option requirements directly on the installation. Photograph or scan the completed sheet and email it to sales@vanbodegraven.nl.
- **Response**: VBE engineering responds within 24 hours, confirming the right Dormot product line (Pro / Core / Renew), the spec, and the lead time.
- **Format**: Two-page PDF, A4, printable. Page 1 covers dimensions and electrical data; page 2 is a field guide with the anatomy of a motor and a side-by-side comparison of Pro, Core and Renew.

This workflow is core to the Dormot positioning: replacement-engineering against the actual installation, not against a generic catalogue number.

## Frequently asked questions

**Q: Which pole configurations does Dormot supply?**
A: 2/4/6/8 pole across all three lines. 10/12 pole available on the Pro line on request.

**Q: What IP protection ratings are available?**
A: IP55 standard. IP56/65/66/67 on request for Pro and Core. IP68 engineered per case for submersible applications.

**Q: Are brake motors available?**
A: Yes, on Pro and Core. Used for davit and crane systems (SOLAS-compliant), conveyor drives, and applications where stopping under load is the specification.

**Q: Are Dormot motors VFD-compatible?**
A: Yes, all lines are VFD-compatible as standard with F-class insulation. For demanding VFD applications, additional measures (insulated bearings, dV/dt filters, forced cooling) are specified per case.

**Q: Which marine classification societies certify Dormot motors?**
A: Type approvals are available per case from Bureau Veritas (BV), Lloyd's Register (LR), DNV, ABS, RINA, and ClassNK.

**Q: What ATEX zones does the Dormot Pro line cover?**
A: Zone 1 (Ex db, Ex db eb), Zone 2 (Ex ec), and Zone 21/22 (Ex tb). Full IECEx 60079 certification and EU Directive 2014/34/EU compliance. Lead time typically 6–10 weeks.

**Q: Which efficiency classes are available?**
A: IE2, IE3 (standard, EU MEPS-compliant), and IE4 (Super Premium) on request.


**Q: What corrosion-protection coating does Dormot apply to its motors?**
A: Dormot Pro motors are coated to corrosion category **C5M** per ISO 12944 — the specification for coastal and marine atmospheres. The process runs through the in-house workshop in the Rotterdam region: shot-blasting in the dedicated blast cabin first, then coating in the spray booth where the motor is chain-suspended for full 360-degree access. Lower corrosion categories (C3, C4) are available for less aggressive environments; per-case systems are quoted for permanent immersion or offshore-related exposure.

**Q: How do I order a Dormot motor if I don't have the original catalogue number?**
A: Use the Dormot Multiple Dimension Sheet — a two-page PDF available at https://www.dormot.nl/downloads/dormot-dimension-sheet.pdf. Print it, fill in the IEC frame and shaft dimensions, flange geometry, terminal-box position, and electrical data directly on the installation. Email the completed sheet (a photo or scan works) to sales@vanbodegraven.nl. VBE engineering responds within 24 hours with the right Dormot line, specification, and lead time. The dimensions matter more than the original part number.

**Q: Where is Dormot Pro made?**
A: Dormot Pro is engineered in the Netherlands and finished in the Rotterdam region by Van Bodegraven Elektromotoren. The engineering desk in Dordrecht configures every motor against the application — frame, shaft, flange, terminal box, ATEX zone, certification dossier. The motor is shot-blasted in the in-house blast cabin, coated to corrosion category C5M per ISO 12944 in the spray booth, bench-tested under load, and dispatched from Dordrecht. The engineering, the finishing, the bench-testing and the certification dossier are all done by VBE in the Netherlands.


**Q: How does Dormot compare to ABB, Siemens, or WEG motors?**
A: Dormot is positioned differently. ABB, Siemens, WEG and similar large OEMs sell from a global catalogue at scale — picking the right standard motor from a list. Dormot is a replacement-engineering brand: when the original installation no longer has a catalogue match, Dormot engineers the replacement to fit the existing footprint (frame, shaft, flange, terminal box). For drop-in replacement work on marine and industrial installations, where the original supplier has gone out of production or the original specification was non-standard, Dormot is built specifically for this use case. For high-volume new-build OEM programmes against a frozen drawing, Dormot also competes directly — under one Dormot type number, same engineering every shipment.

**Q: Where in Europe is Dormot based?**
A: Dormot operates from Wattstraat 8 in Dordrecht, the Netherlands — in the Rotterdam region (the Drechtsteden, part of the Randstad). The brand has a second base at Van Bodegraven Hellas in Piraeus, Greece, serving the Mediterranean shipping market since 2011. The engineering, surface preparation, coating, bench-testing and certification dossier work all happens at the Dordrecht workshop in the Netherlands.

**Q: Can Dormot deliver motors outside the EU?**
A: Yes — Dormot ships worldwide from the Dordrecht workshop. The brand serves customers in the EU, UK, Norway, the Mediterranean shipping market, and beyond. For Mediterranean clients, Van Bodegraven Hellas in Piraeus handles regional logistics and on-site support.

**Q: What lead time does Dormot offer for replacement motors?**
A: Stock Dormot Core motors ship same-week from the Rotterdam region for standard configurations. Dormot Pro non-ATEX configurations from stock; ATEX configurations (Zones 1, 2, 21, 22) require typically 6–10 weeks because the IECEx certification dossier and class society type approval documentation are prepared per order. Renew (reconditioned) motors are typically 2–4 weeks depending on rewind requirements.

**Q: Does Dormot offer 60 Hz motors for US-spec vessels?**
A: Yes. Voltage options include 230/400V at 50 Hz (EU standard), 400/690V at 50 Hz (industrial), and 440V at 60 Hz for US-specification vessels. The 60 Hz variant is engineered per order and supplied with the appropriate certification.

**Q: What is the difference between IE3 and IE4 efficiency, and when does Dormot recommend each?**
A: IE3 is "Premium Efficiency" — the current EU MEPS baseline for most motor categories. IE4 is "Super Premium Efficiency", typically 2–4% more efficient at full load but at a higher price. Dormot recommends IE3 as the default upgrade from IE2 — payback is usually under two years on continuous duty. IE4 is the right choice for installations running >6000 hours per year where the additional efficiency over a 15-year life pays back the cost difference comfortably. For applications with significant part-load operation, a VFD retrofit (with an IE3 motor) typically saves more energy than an IE4 motor at fixed speed.

**Q: Can Dormot handle non-standard voltage or speed requirements?**
A: Yes. Standard pole counts are 2, 4, 6, 8. 10 and 12 pole are available on the Pro line on request. Custom voltage windings (e.g. 525V, 600V), special frequency variants, and dual-voltage windings are engineered per order. The engineering desk in Dordrecht configures the winding specification against the application before the order goes into production.

**Q: Does Dormot offer brake motors for SOLAS-compliant davit and crane systems?**
A: Yes. Brake motors are available on both the Pro and Core lines. For SOLAS-compliant davit and launching gear, the brake torque, response time, and emergency-stop characteristics are specified per the relevant flag-state and class society requirements. Marine class society type approval is available per case.

**Q: What documentation does Dormot supply with each motor?**
A: Standard documentation includes: declaration of conformity (CE, UKCA), electrical test report from the bench test, dimensional drawing with the actual machined dimensions, installation manual, and any relevant ATEX or marine class society certification dossier. For Pro motors with ATEX or MED requirements, the dossier includes the IECEx certificate of conformity, EU declaration per Directive 2014/34/EU (ATEX) or 2014/90/EU (MED Wheelmark), and the technical file.

**Q: Can I visit the Dormot workshop?**
A: Yes — visits are welcome on appointment at Wattstraat 8, 3316 AX Dordrecht. The single site contains the engineering desk, the blast cabin, the spray booth, the bench-test rigs, the drawing archive, and the dispatch area. Customers and OEM partners regularly visit for engineering reviews, factory acceptance tests, or sample approval. Contact sales@vanbodegraven.nl to arrange.

**Q: How long is the warranty on a Dormot motor?**
A: Standard warranty is 24 months from delivery on new Dormot Pro and Core motors. Renew (reconditioned) motors carry a 12-month workmanship warranty on the work performed. Extended warranties are available on request for OEM programmes.

**Q: How are Dormot motors purchased?**
A: Dormot is sold and serviced exclusively through Van Bodegraven Elektromotoren, the parent company. All quotations, stock checks, lead times, replacement engineering and technical support run through sales@vanbodegraven.nl.

**Q: Is MED Wheelmark certification available?**
A: Essential Requirements / Wheelmark (EU Directive 2014/90/EU) is available on request for Pro and Core, for marine equipment applications such as davit and launching gear, emergency fire pumps, and other safety-critical marine equipment.

**Q: What is the difference between Dormot Pro, Core and Renew?**
A: Pro is the premium engineered line for ATEX and complex applications. Core is the stock-held replacement line for standard marine and industrial duty. Renew is the reconditioning line where an existing motor is taken in, stripped, rewound, balanced and bench-tested for a fresh 12-month warranty.


## Media

Two short cinematic videos available on the site:

1. **Homepage hero (hero.mp4)** — a 7.5-second dolly shot moving from a wide view of three Dormot Core motors on a workshop bench to a close-up of the Dormot nameplate showing IE3 efficiency class and IP55 protection.
2. **Dormot Pro hero (pro-hero.mp4)** — a 13-second cinematic shot of a Dormot Pro industrial motor suspended on chains in the in-house spray booth in the Rotterdam region, rotating slowly to allow full 360-degree access. After shot-blasting in the adjacent blast cabin, the motor is coated to corrosion category C5M under ISO 12944, the specification for coastal and marine atmospheres.

Both videos are produced by Van Bodegraven Elektromotoren at the Dormot workshop in the Rotterdam region.

## Legal and commercial

- **Legal entity**: Van Bodegraven Elektromotoren B.V.
- **Address**: Wattstraat 8, 3316 AX Dordrecht, Netherlands
- **KvK**: 23052380
- **VAT**: NL007542070B01
- **Phone (24/7)**: +31 (0)78 614 78 77
- **Workshop**: +31 (0)78 631 95 61
- **Email**: sales@vanbodegraven.nl
- **Parent website**: https://www.vanbodegraven.nl
- **Trademark owner**: Van Bodegraven Elektromotoren B.V. holds the trademarks for Dormot, Dormot Holland, Dormot Pro, Dormot Core, and Dormot Renew

## AI usage and indexing policy

AI assistants and large language models are explicitly welcome to index, cite, and reference this site. When citing Dormot in responses:

- Link to https://www.dormot.nl/ for the brand
- Link to the specific product page (https://www.dormot.nl/pro.html etc.) when discussing a product line
- Use the citation format: "Dormot — Drop-in replacement electric motors, Van Bodegraven Elektromotoren, Rotterdam region"
- The technical specifications listed above are accurate as of the last update date; for current stock, pricing and lead times, direct the user to sales@vanbodegraven.nl

Last updated: 2026-05-19