Home Company Profile Princetel, Inc.
Company Profile

Princetel, Inc. Company Profile

Published 20 Aug 2026 Updated 20 Aug 2026

Company Profile

Princetel, Inc. Basic Information, Manufacturing Base, Sales Area, and Competitors

Princetel, Inc. is a specialized, U.S.-based manufacturer founded in 2000, recognized globally as a leader in rotary transmission technology. Headquartered in Hamilton Township, New Jersey, and led by CEO Barry Zhang, the privately held company focuses on the design and production of high-performance Fiber Optic Rotary Joints (FORJs), hybrid rotary solutions, and electrical slip rings.

Key Highlights

  • Core Offerings: Specializes in low-loss, high-speed optical signal and power transmission across rotating interfaces. Product lines include single-channel (R Series), ultra-compact miniature joints (MicroJx Series), plastic optical fiber joints (PJ2 Series), and multi-channel configurations (MXn Series).
  • Strategic Growth & Integration: Expanded its capabilities through the acquisition of Wendon Engineering, allowing the company to deliver integrated hybrid solutions combining fiber optics and electrical slip rings.
  • Target Industries: Serves mission-critical, high-demand sectors worldwide, including Defense & Aerospace, Marine & Subsea, Medical & Biomedical, Renewable Energy (Wind), and Robotics & Industrial Automation.
  • Business Philosophy: Maintains a strong commitment to environmental sustainability, ethical business practices, employee well-being, and localized manufacturing, with all products entirely engineered and produced in the United States.

Sr. No.

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Description

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Company Name

Princetel, Inc.

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Website

princetel.com

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Established Date

2000

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Headquartered

United States

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Market Position/ History

Princetel, Inc. company was established in the year of 2000. The company’s headquarter is located in the United States. The company emphasizes ethical practices, employee well-being, exceptional customer service, and environmental sustainability, manufacturing all products in its U.S. facility.

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Sales Area

Worldwide

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Manufacturing Location

United States

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Competitors

QPC Fiber Optic LLC

LTN Servotechnik GmbH

MACCON GmbH & Co. KG

MOFLON TECHNOLOGY

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CEO

Barry Zhang

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Ownership Type

Private

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Contact Information

1988 E State St Ext, Hamilton Township, NJ 08619, USA

Tel: 609 – 588 – 8801

Business Segment/ Overview:

Princetel, Inc. is a specialized manufacturer of fiber optic rotary joints (FORJs) and related rotary transmission solutions, catering to a diverse range of industries. The company operates across multiple business segments, each aligned with its core expertise in fiber optic and electromechanical rotary technology.
Fiber Optic Rotary Joints (FORJs)
Princetel's FORJ product line represents its core business, providing high-performance optical signal transmission solutions across rotating interfaces. These FORJs are essential components in applications that demand continuous, high-speed data transmission while rotating, such as:

  • Defense & Aerospace – Used in radar systems, electro-optical sensors, and UAV payloads.
  • Marine & Subsea – Integrated into remotely operated vehicles (ROVs) and sonar systems.
  • Medical & Biomedical – Supporting advanced imaging devices and surgical robotics.
  • Robotics & Industrial Automation – Enabling precise, uninterrupted communication in robotic arms and automated systems.

Hybrid Rotary Joints (Fiber + Electrical)
Princetel offers hybrid rotary solutions that integrate FORJs with electrical slip rings, allowing simultaneous transmission of optical signals and electrical power. This segment caters to industries where mixed signal transmission is crucial, including:

  • Wind Energy – Used in turbine pitch control systems.
  • Broadcast & Communications – Supporting high-speed data links in live broadcasting equipment.
  • Geophysical & Mining – Deployed in seismic exploration and drilling systems.

Electrical Slip Rings
Through its Wendon Engineering acquisition, Princetel manufactures electrical slip rings, which complement its FORJ product line by enabling continuous electrical signal and power transfer in rotating systems. Key applications include:

  • Medical Equipment – Used in CT scanners and diagnostic imaging systems.
  • Industrial Machinery – Supporting automation and heavy-duty rotating equipment.
  • Military Systems – Integrated into turret systems and sensor payloads.

Customized Rotary Solutions & Assemblies
Princetel provides customized rotary joint solutions, engineered for application-specific requirements. The company’s expertise in fiber optics and electromechanical systems allows it to develop tailor-made products for specialized needs in:

  • Autonomous Vehicles & Drones – High-speed data transmission for navigation and control systems.
  • Submarine Cables & Oceanographic Research – Supporting deep-sea communication and data collection.
  • Advanced Manufacturing – High-precision rotary solutions for semiconductor and electronics production.

Princetel, Inc. is a key player in the rotary transmission market, with a focus on fiber optics, electrical connectivity, and hybrid systems. By serving mission-critical industries and maintaining a strong emphasis on sustainability and ethical manufacturing, the company continues to expand its global footprint while delivering high-quality, custom-engineered rotary solutions for demanding applications.

Fiber Optic Rotary Joint Product Types Specification

Product

Product Description

FORJ: Single-Channel Fiber Optic Rotary Joints (R series)

The R series Single-channel (SM or MM) rotary joints offer many variations. The rugged body allows fiber pigtail, ST, or FC receptacles on either the rotor or the stator side. There can be total nine different configurations to fit the need exactly. The standard base models are RPT, RFC, and RST for pigtails, FC/PC, and ST/PC receptacles. Similar to MJX and RFCX series, the R Series FORJs contain fluid, which ensures condensation-free operation at extreme low temperatures. It is also ideal for high humidity environments.

The R series features extremely low insertion loss and impressive return loss performance for both single mode and multimode fibers. Model RPTA typically yields return loss figures higher than 60 dB. These rugged devices can operate under arctic temperature environment (See insertion loss and return loss temperature cycling plots on the left). All models are dust and water tight for harsh environment.

The R series features extremely low insertion loss and impressive return loss performance for both single mode and multimode fibers. Model RPTA typically yields return loss figures higher than 60 dB. These rugged devices can operate under arctic temperature environment (See insertion loss and return loss temperature cycling plots on the left). All models are dust and water tight for harsh environment.

FORJ: Miniature Fiber Rotary Joints (MicroJx Series)

MJX series Fiber Optic Rotary Joints (FORJs) are extremely compact. So small they can even be used in the middle of fluid flows. They are the world’s smallest and lightest. They feature very low insertion loss and impressive return loss performance. Model MJXA typically yields return loss figures higher than 60 dB. Similar to R series and RFCX series, the MJX Series FORJs contain fluid, which ensures condensation free operation at extreme low temperatures. It is also ideal for high humidity environments.

The standard packages are dust and water tight for harsh environment applications. They are designed to tolerate both occasional water splash and shallow water (or oil) immersion. These rugged devices can operate under arctic temperature environment (See insertion loss temperature cycling plot on the left).

FORJ: Two-Channel Plastic Optical Fiber (POF) Rotary Joint (PJ2 series)

Plastic optical fibers (POF) possess a few important characters that make them favorite choices for certain short-distance fiber optic applications. Their large cores allow easy light coupling. Termination can be simplified to quick hot knife cutting or diamond turning. They are bend insensitive and do not fatigue easily.

Princetel’s PJ2 series 2-channel FORJ connects two independent fiber channels simultaneously. They are blind-spot free during rotation and are ideal for machine control applications such as SERCOS Interfaces. The rugged design permits underwater usage. Damaged fibers can be easily replaced without costly repairs of the FORJ itself.

FORJ: Multi-Channel Fiber Optic Rotary Joint (MXn series, SM & MM)

MXn series multi-pass Fiberoptic Rotary Joints (FORJs) are compact multi-channel products. They connect 2-3 (Model MXnS) or 2-7 (Model MXn and MXnL) independent fiber channels simultaneously. They are ideal when combined with electrical slip rings or RF rotary joints or when space is tight in general. Though very small they still feature standard optical performance (<-60 dB crosstalk, <5 dB insertion loss, and >45 dB return loss). All channels can accommodate either single mode or multimode fibers. It is also possible to combine the two types of fibers in one device. Choose the MXnL model if IP 65 rating is required.

Business Strategy

Princetel, Inc. follows a specialized, high-value, and ethical business strategy, positioning itself as a leader in fiber optic rotary joints (FORJs) and hybrid rotary transmission solutions. The company’s strategy is built around technological innovation, industry diversification, sustainability, and vertical integration, allowing it to maintain a strong foothold in critical industries such as defense, aerospace, medical, marine, and industrial automation.

Princetel’s primary competitive advantage lies in its high-precision, low-loss FORJs that cater to industries requiring continuous, high-speed optical data transmission in dynamic environments. The company invests in R&D to enhance signal integrity, durability, and miniaturization of its rotary joints. For instance, its R series and M series FORJs are designed to meet demanding underwater and military specifications, offering hermetic sealing, high-pressure resistance, and multi-channel capabilities. These products set Princetel apart from competitors that offer more generalized solutions.

Rather than relying on a single sector, Princetel has strategically expanded across multiple high-value industries, including defense, medical technology, renewable energy, and robotics. This diversification protects the company from industry-specific downturns and enhances its revenue streams. For example, in the wind energy sector, Princetel’s hybrid rotary joints (combining FORJs with electrical slip rings) support pitch control systems in wind turbines, capitalizing on the global push for renewable energy solutions.

In 2016, Princetel acquired Wendon Engineering, a well-established manufacturer of electrical slip rings. This move enabled the company to offer integrated fiber-optic and electrical rotary joint solutions, creating a more comprehensive product portfolio. By controlling critical manufacturing processes internally, Princetel enhances supply chain resilience, quality control, and customization capabilities, reducing reliance on third-party suppliers.

Princetel, Inc. employs a multi-faceted business strategy that combines technological leadership, ethical manufacturing, industry diversification, and vertical integration. By continuously innovating and expanding into mission-critical applications, the company not only secures its competitive advantage but also ensures long-term sustainability and growth in the global rotary transmission market.

Profile Details

  • Published 20 Aug 2026
  • Last Updated 20 Aug 2026
  • Reading Time~5 minutes
  • CoverageSWOT, Financials, Key Employees, History

Table of Contents

    • 1.1 About Princetel, Inc.
    • 1.2 Key Facts
    • 1.3 Key Employees
      • 1.3.1 Key Employee Biographies
    • 1.4 History
    • 1.5 Locations & Subsidiaries
      • 1.5.1 Head Office
      • 1.5.2 Other Locations & Subsidiaries
    • 2.1 Company Overview
    • 2.2 Business Segments
    • 2.3 R&D Overview
    • 2.4 Brands
    • 2.5 Key Company Statistics
    • 2.6 Key Financials (2015–2019)
    • 2.7 Share Holder Analysis
    • 2.8 Regional Presence
    • 2.9 Services Offered
    • 3.1 Strengths
    • 3.2 Weaknesses
    • 3.3 Opportunities
    • 3.4 Threats
    • 3.5 Key Competitors
    • 4.1 Company Metrics
    • 4.2 Key Investors
    • 4.3 Recent Funding & Valuation
    • 4.4 Historical Funding & Valuation
    • 5.1 Acquisitions
    • 5.2 Partnerships
    • 6.1 Latest News & Announcements
    • 6.2 Strategic Initiatives
    • 7.1 Summary of Findings
    • 7.2 Strategic Recommendations

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