The device processes greases up to NLGI 2 at 20 °C. The form sleeve has a tight fit for loose grease or cartridges. The pump piston has a high precision fit with the cylinder (no false lubrication). The performance remains unchanged after 40,000 operating cycles. The grease press head is made of zinc die-cast Z 410. Strong knurling ensures a secure grip. The handle on the push rod provides additional safety. The loose lid with clamping piece allows for manual assistance of the spring force in any position for compressing loose grease or for pressing the sleeve into damaged cartridges. Quick venting is achieved with a half turn of the grease press pipe.