• In English
  • Finnish
  • Svenska
  • По-русски
  • In English
  • Finnish
  • Svenska
  • По-русски
facebook iconyoutubelogo50
All based on Original OK-Vise Clamping Method

What´s new

EMO is the world’s No. 1 trade show for the metalworking industryEMO is the world’s No. 1 trade show for the metalworking industry, featuring 2,200 exhibitors from 44 countries and over 180,000 square meters (approx.1.94 million sq. ft.) of net display space. Industry professionals with decision-making authority and technical expertise – including CEOs, board members and subject specialists from all production backgrounds – attend the show to learn about all the latest innovations.

We look forward to welcoming you to our stand Hall 3 / H21

In addition to our world-renowned clamping method, we will also demonstrate our innovative Fixturing Concept, which enables easy and reliable fixture building.

NEW: Automation & Digitalization

The world is digitalizing – and we are developing too. The automated clamping and wireless force verification system DIGIFORCE are the stars of the show.

With wireless DIGIFORCE, the operators of machining centres can now verify that the clamping force is high enough to hold the work piece check that the clamping force is not so high as to damage the work piece measure the machining forces.

new products automation 2019Automation: actuators & powerplate concept

new products wireless 2019Wireless clamping force verification

new products components 2019New fixturing consept components

Among other things, OK-VISE was showing in EMO 2017

EMO 2017 products

Revolutionary DIGIFORCE system for clamping force verification


Mechanical module for clamping force verification

to replace a stopper and enable quick setup change






OK-VISE has now developed a system for clamping force verication. Now, there is finally a system where the end users working on the machining centers can

a) verify that the clamping force is high enough to hold the workpiece
b) check that clamping force is not too high to damage the work piece
c) measure the machining forces


 Additionally, we have FIXTURE SCADA system to collect statictics from a pool of fixtures. This is useful for analytics and development purposes.

This system will be shown in Fastems Open House in Issum, Germany on 20th and 21st June 20017.
Next presentaton will be during EMO in Hannover in September, and we start supplying the system to customers in October


OK-VISE Fixturing Concept solutions have been included in the product range of many leading distributors specializing in workholding industry. With more and more OK-VISE components, and particularly Multi-Rail RM systems, being shipped worldwide, our company is experiencing a real sales boom.

The biggest project in 2016 comprised of the 140 pieces of the Multi-Rail sets (based on RM-600 module). Besides, sets for horizontal, vertical and 5-axis machining centers have been increasingly popular among our customers and we see more sales growth ahead.

 RM comp1 w600

 OK VISE hydraulic actuatorHydraulic apps 12

Hydraulic clamping is available in all our Fixturing Concept systems. Case: Fixturing components for generic-purpose workholding.

We are proud to announce that one of the highlights at the EMO show will be our Fixturing Concept with hydraulic clamping. This is a concept that can be used not only in robotic loading, but also in semi-automated solutions where loading is done manually and automation is used to save clamping time.

One of the most fascinating cases we have ever had was our recent turnkey concept for precision instrument manufacturing. Please take a look at the video.

Overview 1


Kytola Instruments, who has now installed a Flexible Manufacturing System (FMS) from the Finnish company Fastems, are extremely happy with their investment. Together with 14 new tooling blocks supplied by OK-VISE Oy, including several Fixturing Concept and Multi-Rail setups, the system has improved their flexibility significantly.

Tooling blocks

In total, Kytola is machining today about 100 products with two HMC machining centers in their FMS, typically each component is machined in two set-ups. 

Kytola Instruments is using two major OK-VISE technologies in minimising their set-up times:

1) Multi-Rail RM units

Using this generic-purpose concept the stopper and clamp modules, side guides and parallels can be easily moved in the base rail. Additionally base rail position can also be easily changed using tooling block with 25x50 mm grid pattern.

RM apps Kytola

2) Sub plates with OK-LOCK

When modifying the fixture is not possible, the whole fixture plate can be changed in less than a minute using OK-LOCK zero-point positioning system. Kytola has been using mostly dedicated sub plates in the past. Today - thanks to the flexibility of Multi-Rail system - the amount of dedicated fixtures has gone down. Now only 20% of the fixtures are dedicated sub plates, the remaining Fixtures are built using Multi-Rail units.

Sub plates

95 % of the Fixtures are using OK-VISE low-profile clamps

Detailed case study of Kytola Instruments FMS case is available: Please send an e-mail to olavi.merilainen@ok-vise.com

Kytola Instruments, a Finnish company that is specialised in flow metering components is investing in FMS system. The system integrates 2 Mori Seiki machining centers with FMS containers of Fastems.

OK-Vise Oy was chosen as the supplier for all workholding equipment. Core components of the working system includes tooling blocks, specifically:

  • 10 pieces of the tooling blocks are equipped with Multi-Rail.
  • 4 pieces of the tooling blocks are OK-Lock tooling blocks, which enables changing of fixturings extremely fast.

All together there are a total of 48 pieces of RM Multi-Rail units.

In addition to components in FMS systems with horizontal machining centers (HMC), Kytola Instruments has also invested on two OK-Lock positioning system, for their vertical machining centers (Bridgeport VMC’s). One of the two is installed as an indexer for the 4th axis.

So why did Kytola Instruments invest in FMS system?

We wanted to use two of our machining centers more efficiently,” said Sakari Häyrynen the Managing director of Kytola instruments.

Kytola will highly benefit from this by radically reducing our set-up times, producing more capacity with less machines and increasing the utilization of our machines by operating them also in unmanned hours” he added.

Jarmo Tuohimetsä the production manager commented, “ we wanted to have a state-of-the-art manufacturing system and the FMS system will surely help us achieve that goal. This will also lead to more investments on this system in the future.”

What led you to choose OK-Vise as your supplier?

We’ve had good experience from the OK-Vise fixturing technology” quoting Sakari. He also added, OK-Vise fixturing concept is fast, accurate and reliable. All in all by utilising OK-Vise we will be able to fulfill our needs for efficient work-holding.

Jarmo Tuohimetsä comments, “Best equipment in the market that we can get at the moment. The Multi-Rail RM system is very suitable and work very well for our parts. Multi rails are high quality from our experience.”


Kytola FMS 1

Our company was founded by Mr. Olli Kytölä ( "OK") on 10th of April 1984.
We celebrate the anniversary by serving you even better than normally.


When our product range of low-profile clamps is expanding, we have now found out that it is more logical to change the way how we categorize our low- profile clamps.

In our new brochure, and also in www, we categorize our clamps based on their type, not their size (A,B,D,F) like before.

For time being, you can use in www both ways to find information of our low-profile clamps.



OK-VISE has developed new products to meet the changing needs of our customers. These include a model with two self-adjustable jaws (instead of one self-adjustable jaw and one smooth jaw) which comes in three sizes, and two combo models: machinable + smooth jaw as well as additional piece + smooth jaw, which both come in four sizes. These new models provide new opportunities for clamping different types of workpieces. 

Models with two self-adjustable jaws: BK2-VT-E, DK2-VT-E, DK2-VTI-E
Additional piece and smooth jaw combo models: BK2-VT-TS, DK2-VT-TS, DK2-VTI-TS, FK2-VT-TS
Machinable and smooth jaw combo models: BK2-VT+3S, DK2-VT+5S, DK2-VTI+5S, FK2-VT+5S

OK-VISE has been a leading manufacturer of wedge-clamps for over 20 years. Some of our first customers have been using the same clamps all this time and still use them on a daily basis.

Based on this experience and after conducting extensive tests with our clamps we are prepared to offer a full 10 year warranty on the quality of the raw material and craftsmanship of all the wedge and jaw parts of our low-profile clamps excluding the blackening, springs and sideplates.

Simply return the whole clamp with the defective part direct to us. We will replace the part and ship the complete clamp back to you. The cost of the replacement part and return shipping will be borne by us.

The warranty does not cover damage caused by a machine malfunction or failure or a machinist causing damage due to human error or misuse of a clamp.