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Specification: CDH1 MT4 Mill-Type Cylinder, 100/70×1300mm, Trunnion Mount, Double-Acting, Rexroth Compatible (mill type cylinder, CDH1 hydraulic cylinder, trunnion mount cylinder, 100mm bore cylinder, heavy duty hydraulic cylinder)
CG series Hydraulic Cylinder, double acting mill cylinder, ISO 6022 hydraulic cylinder, heavy duty round body cylinder
CDH1 MT4 mill-type cylinder, 100mm bore, 70mm rod, 1300mm stroke. Double-acting, trunnion mount on the head end. The MT4 mount puts the pivot point near the rod side, so the body swings while the rod end stays put — common setup for articulating arms and pivoting linkages.
Barrel is 27SiMn seamless honed tube, roller-burnished internal finish. Rod is CK45 or 40Cr, induction hardened first, then hard chrome plated 25-35 micron, surface hardness around HV 850-950. Chromed rod runs through a bolted gland assembly with 12.9 grade hex bolts around the perimeter — standard mill-type head design, easy to rebuild.
Trunnion pins are brass material, pressed and secured into the MT4 mounting block. Brass on steel gives you a natural bearing surface, no separate bushing needed. Each pin has a split-pin hole for external retention clips.
Gland housing has a side hex port — standard size for G1/2 or M22×1.5 hose fitting. Service side access only, the top port on the cap end handles the blind-side flow. Adjustable cushioning screws at both ends if you need to dial in deceleration at stroke limits.
Rod end is a spherical bearing eye with a grease nipple on the housing. Self-aligning type, gives you a few degrees of angular play for mounting tolerance. The bearing itself is hardened steel, replaceable — press out the old one, press in a new one, no machining needed.
Sealing: PTFE step-cut primary with NBR energizer on the piston, PU U-cup buffer, double lip wiper on the rod. Standard Parker/Merkel profile geometry, off-the-shelf seal kits fit.
Tested at 35MPa hydrostatic for 5 minutes, then full-stroke cycling at 25MPa with cushioning check. Mounting dimensions match Rexroth CDH1 MT4 factory specs — bolt pattern, trunnion pin diameter, port locations all interchangeable.
Typical applications: articulated boom cylinders, swing arm actuators, pivoting press linkages, steel mill tilt cylinders, construction equipment — anywhere the cylinder body needs to pivot during operation.
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Main Product:
Hydraulic Cylinder,
hydraulic pressure system,
Telescopic hydraulic cylinder,
Electric hydraulic cylinder,
Hydraulic pump,
Double acting hydraulic cylinder
