Robot Grippers

Aug 22, 2017

The end of arm tooling for robots, also known as the robot gripper, is one of the most important parts of the robot system. The right type of gripper is imperative as the end-of-arm tool (EOAT) comes in direct contact with the product. There are four types of robotic grippers to choose from: vacuum grippers, pneumatic grippers, hydraulic grippers, and servo-electric grippers.


Robot grip­pers are the phys­i­cal inter­face between a robot arm and the work piece. This end-of-arm tool­ing (EOAT) is one of the most impor­tant parts of the robot. One of the many ben­e­fits of mate­r­i­al han­dling robots is the reduc­tion of part dam­age. A grip­per comes in direct con­tact with your prod­uct, so it’s impor­tant to choose the right type of grip­per for your oper­a­tion to pre­vent break­age, delays, or accidents.

Types of Robot Grippers

There are four types of robot­ic grip­per types: vac­u­um grip­pers, pneu­mat­ic grip­pers, hydraulic grip­pers and ser­vo-elec­tric grip­pers. Man­u­fac­tur­ers choose grip­pers based on which han­dling appli­ca­tion is required and the type of mate­r­i­al in use.

Vac­u­um Grippers

The vac­u­um grip­per has been the stan­dard EOAT in man­u­fac­tur­ing because of its high lev­el of flex­i­bil­i­ty. This type of robot grip­per uses a rub­ber or polyurethane suc­tion cup to pick up items. Some vac­u­um grip­pers use a closed-cell foam rub­ber lay­er, rather than suc­tion cups, to com­plete the application.

Vac­u­um grip­pers are com­mon­ly used for flat objects, such as box­es and wood, and are ben­e­fi­cial if you want to arrange items on pallets.

Pneu­mat­ic Grippers 

The pneu­mat­ic grip­per is pop­u­lar due to its com­pact size and light weight. It can eas­i­ly be incor­po­rat­ed into tight spaces, which can be help­ful in the man­u­fac­tur­ing indus­try. Pneu­mat­ic robot grip­pers can either be opened or closed, earn­ing them the nick­name bang bang” actu­a­tors, because of the noise cre­at­ed when the met­al-on-met­al grip­per operates.

Pneu­mat­ic grip­pers can be used to hold and lift heavy objects.

Hydraulic Grip­pers

The hydraulic grip­per pro­vides the most strength and is often used for appli­ca­tions that require sig­nif­i­cant amounts of force. These robot­ic grip­pers gen­er­ate their strength from pumps that can pro­vide up to 2000psi. Although they are strong, hydraulic grip­pers are messier than oth­er grip­pers due to the oil used in the pumps. They also may need more main­te­nance due the grip­per being dam­aged because of the force used dur­ing the application.

Ser­vo-Elec­tric Grippers

The ser­vo-elec­tric grip­per appears more and more in indus­tri­al set­tings, due to the fact that it is easy to con­trol. Elec­tron­ic motors con­trol the move­ment of the grip­per jaws. These grip­pers are high­ly flex­i­ble and allow for dif­fer­ent mate­r­i­al tol­er­ances when han­dling parts. Ser­vo-elec­tric grip­pers are also cost effec­tive because they are clean and have no air lines.

Ser­vo-elec­tric grip­pers can be used for machine tend­ing and pick and place applications.

Find the Right Grip­per with Robots​.com

Robots​.com is an expe­ri­enced mate­r­i­al han­dling robot inte­gra­tor. We are able to not only help you choose the right type of grip­per, but we can also cus­tomize the size and shape need­ed to fit your spe­cif­ic prod­uct needs. Choos­ing the prop­er grip­per is essen­tial to ensur­ing suc­cess­ful automa­tion appli­ca­tions. For more infor­ma­tion, con­tact Robots​.com today at 8777626881 or by fill­ing out our con­tact form.

Let's talk!

Request your quick quote today.