Analytical Instruments

Holmarc manufactures automatic digital polarimeters for industry and research with robust performance and efficiency. Symmetric angular oscillation optical null technique by faraday modulation is implemented in our polarimeters to achieve high resolution and repeatability. Operation is simple: place the sample filled tube in the automatic polarimeter and press read button. Measurement is displayed on the soft colour lcd display of the instrument.

The polarimeter is used for determining the optical rotation of substances. By measuring optical rotation, the concentration, content, purity etc of the sample solution can be found out. Polarimeter has become one of the most useful instruments in research laboratories of sugar industry, pharmaceutical industry, oil refining, food industry, chemical industry as well as basic research in universities and r&d organizations.

Major modules in our polarimeter include light source, interference filter, polarizer, faraday modulator, sample chamber, analyzer and detector. Unpolarized light from light source (led) passes through an interference filter and polarizer so that a fixed wavelength polarized light comes out. This polarized light enters the faraday modulator and then passes through the sample cell. The modulated light which passed through the sample cell enters a second polarizer, known as the "Analyzer, which detects the angle of rotation. Finally, the light falls on a silicon photo diode which converts the light intensity to an electric signal.

Reliable Measurement of Optical Rotation

Holmarc's Optical Polarimeter delivers high precision and dependability for analyzing optical rotation in various substances. Suitable for educational, laboratory, and research applications, the instrument employs optical glass elements and a sodium lamp at 589 nm for consistent results. The robust metal body is corrosion-proof, ensuring longevity and consistent performance.


User-Friendly Manual Operation

Equipped with a practical analog scale and manual controls, this polarimeter offers straightforward operation ideal for students and professionals alike. The double image eyepiece ensures easy and accurate alignment of readings, while the supplied calibration tube simplifies regular maintenance and accuracy checks.


Versatile and Durable Design

Constructed for versatile laboratory environments, the polarimeter operates efficiently in temperatures from 10C to 40C and humidity up to 80% (non-condensing). Its compact 5 kg benchtop form factor fits easily on standard laboratory counters, and the standard sample tube ports allow quick specimen loading.

EM7000S is a HOLMARC New Magnet LAB range high magnetic field PC controlled Dipole Electromagnet that can provide fields above 3.5 Tesla @5mm field gap. Designed to meet industrial, educational, and research needs of very high, uniform field strengths in a wide range of air gaps. The HOLMARC Magnet LAB range dipole electromagnet systems are intended to work based on automated PC controlled operations.

The EM7000S comes with a standard set of 125mm diameter poles that tapered into a 25mm. optimize maximum field but several pole options are available. HOLMARC can also design custom poles that achieve a specific performance. Poles are interchangeable and are available with an axial access bore.

Advanced High Field Strength

Engineered to reach up to 4 Tesla, the lab-grade electromagnet ensures accurate and consistent magnetic field application. Its high-grade soft iron core delivers exceptional field uniformity, enabling precise measurements for demanding research and testing environments.


User-Friendly Digital Control

The system offers both manual and automatic field control modes with quick response times of under one second. Digital LCD readouts display real-time field data, simplifying operation. Programmable via USB and RS232 interfaces, it accommodates modern laboratory workflows efficiently.


Comprehensive Safety and Compliance

Equipped with automatic overload and overheat protection, the electromagnet lab meets rigorous safety standards. The forced-air cooling system maintains optimal operating conditions, ensuring long-term reliability. Certified to CE standards, it fits seamlessly into accredited labs.

Holmarcs Spin Coating unit, Model no: HO-TH-05C has been designed with many additional features than that of Model: HO-TH-05.

In this model of spin coater, UV LED curing system is used whenever there is a need for curing and drying of coatings. It also provides gases purge facility for additional supply of gases inside the chamber. Vaccum Chucks provide flat, rigid surface for mounting substrates of different sizes and shapes. A vaccum chuck powered by oil- less vaccum pump holds the substrate at the spinning head. In-built sample dispensing system (optional accessory) helps to supply volatile solution in milli liter volume. The syringe holder height can be adjusted and rotated freely along the support rod. All required safety measures are provided for high speed rotation and spillage. It also provides facility for drainage.

The system has a user friendly front panel with key board and LCD display. The programs are easy to set up with up to 9 steps per program. All other features are same as that of Model: HO-TH-05. Three sets of nylon anti-corrosive vacuum chucks are provided along with the equipment for holding substrate from 15 x 15 mm square to 100 x 100 mm square.

Precision and Programmable Coating

With a digital microprocessor, users can set spin speeds from 500 to 8000 rpm and time durations between 1 and 999 seconds. This programmability allows for highly precise and repeatable film coatings suitable for research and development of photoresists, polymers, and sol-gel materials.


Designed for Safe and Efficient Operation

Safety is prioritized with a transparent interlocked lid, over-speed, and imbalance protections. The removable Teflon-coated bowl allows quick cleaning and reduces contamination risks, while a noise level below 55 dB ensures a comfortable working environment in laboratory settings.


Versatile Compatibility and User-Friendly Interface

Accommodating various consumables, this unit easily coats substrates up to 100 mm in diameter. The membrane keypad and backlit digital LCD provide straightforward operation and real-time process monitoring. Adaptable gas purge allows for humidity-sensitive coatings when equipped.

Thin film spectroscopic reflectometer is a fundamental instrument used for the analysis of thin film thickness in industry and research. Holmarcs tfsr model is able to analyze thin films thickness, complex refractive index and surface roughness with high speed and repeatability. Tfsr theory works with complex matrix form of fresnel equations for reflectance and transmittance. Absolute reflectance spectroscopy is the principle behind reflectometer; which is the ratio of the intensity of the reflected light beam (usually monochromatic) to the intensity of the incident beam.

Light beam normally incident on the sample surface in turn reflect from top and bottom of the thin film surfaces which get interfered and is directed through optical fiber to ccd attached spectrometer via computer. On the monitor we get spectrogram with interference oscillations directly proportional to the thin film thickness.

Holmarcs reflectometer can be used to analyze single, multi-layer, free standing and rough layer thickness of various stacks such as di-electric, crystalline, amorphous, metallic and absorbing samples. It also finds absolute transmittance and absorption directly. Roughness treatment is done with ema modeling. The instrument can also be used to find optical conductivity, molar refractivity and brewsters angle of sample under study.

Advanced Reflectance Measurement

The Holmarc Reflectometer features a halogen lamp with a collimated beam for precise and reproducible reflectance measurements from 400 nm to 700 nm. The photodiode array detector ensures high accuracy and rapid response, making the system suitable for analysis of a wide range of coated and uncoated surfaces in laboratory environments.


User-Friendly Operation and Versatility

With adjustable test speeds, sample holders catering to specimens from 15 mm up to 100 mm in diameter, and the capacity to measure a single specimen weighing up to 2 kg, the instrument provides remarkable flexibility. Software compatibility with Windows systems and multiple interface options (USB, RS232) streamline data acquisition and documentation.


Enhanced Safety and Reliable Performance

Protective measures like fuse and overvoltage safeguards ensure safe operation, while standard mirror calibration maintains consistent accuracy (1%). The anti-slip specimen holder enhances measurement stability. Data can be exported in both graphical and tabular formats, enhancing analytical efficiency during laboratory and industrial use.

Holmarc's UV Ozone Cleaner is a dedicated system to remove a variety of contaminants from surfaces of substrates samples. UV Ozone cleaning is a simple to use dry process which is highly effective method to clean surfaces. The cleaning effect is caused by irradiating the surface of a substrate with suitable lamps creating enough energy in the in the Ultra Violet spectrum range. It is photo-sensitized oxidation process by atomized Oxygen and high reactive Ozone. The UV radiation directly to the surface stimulates the reaction. Volatile hydrocarbon products are produced. The removal of hydrocarbons in nanometer thickness by oxidation results in ultra clean surfaces with significantly wettability. This is very important before thin film coating process of glass and ceramic surfaces.

UV Ozone Cleaner features very high ozone UV lamps which generate energy at 185 nanometers in addition to the low 254 nm line. It provides a trey of 176mm x 168 mm dimension for positioning samples under the UV light source. It comes with an exhaust port and inlet media for the circulation of gas in the trey. Emergency stop is also provided on the control panel to stop the equipment where there is any emergency.

Efficient and Versatile Surface Cleaning

The UV Ozone Cleaner harnesses the power of a 15W UV-C lamp to generate ozone for effective surface cleaning and organic contaminant removal. Its robust stainless steel 304 chamber ensures durability, while programmable settings offer flexibility for various laboratory and industrial tasks. This machine is especially suited for semiconductor and substrate pre-treatment, delivering reliable, fast results every time.


Advanced Safety and User-Friendly Operation

Safety is built into every facet of the UV Ozone Cleaner, with a door interlock, visible power and operation status LEDs, and overheat protection. Its integrated exhaust fan safely evacuates ozone, ensuring a secure work environment. Operation is simple with manual and automatic controls and a digital timer, making it accessible to both seasoned professionals and new users.

A syringe pump is a device which can either infuse or withdraw liquid samples/fluids, at user defined flow rates and with selectable target volumes. Syringe pumps with simultaneous infusion and withdrawal with opposing syringes on a single drive, are also available.

Syringe pumps are widely used in medical field as well as in laboratory and research fields.

Applications of syringe pumps includes electro spinning, electro spraying, micro dialysis, dispensing/dilution, organ/tissue perfusion and fluid circulation.

Syringe pumps are also useful in microfluidic applications, such as micro reactor design and testing, and in chemistry for slow incorporation of a fixed volume of fluid into a solution.

Model: SPLF Series

Holmarc's SPLF series syringe pumps are versatile products ideal for precise dispensing of fluids in laboratory experiments, available at an economical price. Our bench-top Syringe Pump has been designed for safe and ultra-smooth fluid flow for lab applications and can be easily set up inside a standard fume cupboard. Holmarc manufactures syringe pumps in various models for single syringes, two syringes, four syringes and ten syringes.

Versatile and Precise Dispensing Solution

Holmarc's Syringe Pump is engineered for laboratories requiring accurate, controlled dispensing of liquids. Its wide compatibility with standard syringes and programmable dispense volumes make it ideal for applications such as titrations, reagent addition, and sample introduction. The microcontroller-based control mode ensures immediate response times and seamless programming of test parameters.


Key Safety and Usability Features

Safety is prioritized with built-in overload protection and an emergency stop function, providing peace of mind during operation. The LCD digital display presents real-time volume measurements at a high resolution of 0.001 ml, ensuring operators can monitor progress accurately. The bench-top design and low ambient noise (<55 dB) further enhance ease of use in busy lab environments.