賀德克HYDAC系列高壓油濾芯是安裝在液壓系統的油路中用于清除液壓系統中各元件磨損的金屬粉末及其它機械雜質使油路保持清潔，延長液壓系統壽命。 低壓系列濾芯還設有旁通閥，當濾芯未及時更換時，旁通閥能自動打開，保證系統正常運轉。 
HYDAC賀德克濾芯型號如下；
0030R
0030R003BN/HC 0030R005BN/HC 0030R010BN/HC 0030R020BN/HC 
0030R003BN3HC 0030R005BN3HC 0030R010BN3HC 0030R020BN3HC 
0030R003BN4HC 0030R005BN4HC 0030R010BN4HC 0030R020BN4HC
0030R003BN/HC 0030R005BN/HC 0030R010BN/HC 0030R020BN/HC
0030R020P 0030R020W
0060R
0060R003BN/HC 0060R005BN/HC 0060R010BN/HC 0060R020BN/HC 
0060R003BN3HC 0060R005BN3HC 0060R010BN3HC 0060R020BN3HC 
0060R003BN4HC 0060R005BN4HC 0060R010BN4HC 0060R020BN4HC
0060R003BN/HC 0060R005BN/HC 0060R010BN/HC 0060R020BN/HC
0060R020P 0060R020W
0110R
0110R003BN/HC 0110R005BN/HC 0110R010BN/HC 0110R020BN/HC 
0110R003BN3HC 0110R005BN3HC 0110R010BN3HC 0110R020BN3HC 
0110R003BN4HC 0110R005BN4HC 0110R010BN4HC 0110R020BN4HC
0110R003BN/HC 0110R005BN/HC 0110R010BN/HC 0110R020BN/HC
0110R020P 0110R020W
0140R
0140R003BN/HC 0140R005BN/HC 0140R010BN/HC 0140R020BN/HC 
0140R003BN3HC 0140R005BN3HC 0140R010BN3HC