There are three main kinds of grease guns, which are by hand, air, and electricity.
A different kind of grease gun serves different purposes. In fact, we provide various types of grease gun and also customization.
Now, let’s explore for more details.
Generally, mostly grease gun can be loaded with cartridge and bulk loading. However, if grease gun is equipped with the filler plug, then, you can use the grease filler pump to fill in the grease.
Below you can find each loading way instruction:
1. Loading with cartridge
(a) Remove the gun head from the container tube.
(b) Draw back the plunger rod entirely
(c) Insert the open-end of cartridge into container tube and push all the way in.
(d) Remove the seal or pull tab end from the cartridge
(e) Reassemble the gun head to container tube.
(f) Release the plunger rod and push into the container tube.
2. Loading with filler plug
(a) Draw back the plunger rod entirely
(b) Operate the filler pump to fill the container tube through filler plug.
(c) Disconnect the grease gun from the filler pump.
(d) Release the plunger rod and push into the container tube.
3. Bulk loading
(a) Remove the gun head from the container tube.
(b) Draw back the plunger rod entirely
(c) Fill the bulk grease into empty container tube
(d) Reassemble the gun head to container tube.
(e) Release the plunger rod and push into the container tube.
There are many kinds of grease.
Depending on the usage or area, lithium grease, synthetic grease, food grade grease, etc. are all perfect for priming.
Distinguished by the NLGI consistency number, it has 9 grades from grade 000, 00, 0,1 to grade 6. When the grade is higher, the grease is thicker.
Basically, users can use different grease for different purposes.
However, if speaking of the viscosity part, NLGI GRADE 1-2 is generally recommended.
In that way, the grease is perfect for priming, not too hard to prime but not to watery.
© 2026 Shenzhen Hiscience Co., Ltd.