Crosby 70 Series & 80 Series McKissick Oilfield Tubing Blocks - Range from 50,000kg to 150,000kg

The McKissick Oilfield Tubing Blocks utilising new Split Nut Retention System. Revolutionary new retention system eliminates conventional threaded nut and potential
problems associated with thread corrosion.

• Exclusive E-Z opening guards, no bolts to pull out and lose. Feature gives fastest possible exposure of sheave cluster for quick reeving.
• Extremely short overall length, extra weight, excellent balance for fast non-wobbling falls.
• Roller thrust bearing in hook.
• Duplex hook for easy elevator operation, locks in eight positions.
• Also available with Rod Hook Clevis.
• Completely streamlined, no projections.
• McKissick Roll-Forged, flame hardened sheaves, grooved to API profile for proper Wireline size. Contact Crosby for additional Wireline sizes.
• Separate lubrication channel to each sheave.
• Double row, pre-adjusted tapered bearings with seals.
• McKissick Split-Nut® hook parts precision machined and individually fitted for maximum performance.
• Manufactured to API-8C specifications.
• 35 ton Capacity Rod Hook Clevis available.
• Lock Arms with Self Retaining Bolts.
• All sizes are RFID EQUIPPED.
• The 70 Series has a spring loaded hook that is better for heavy usage and larger depths. Tends to last longer since the shock loads are somewhat absorbed.
• The 80 Series has no spring loaded hook and is better for shall ow depths and rework.

70 Series	80 Series

70 Series Tubing Blocks

* Spring loaded duplex hook assuring ample travel for efficient tubing operations. No load carrying threads ** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.

80 Series Tubing Blocks

** A = Rod Hook Clevis attachment standard. AN = New 35 Ton Clevis.