Junlai 930 Fountain Pen Review: A Big Piston Filler with a Number 9 Nib

Introduction

Chinese fountain pens have earned a reputation for delivering far more pen than the price suggests, and the Junlai 930 is a strong example of why. This is a large piston filler made in Shanghai, sold on AliExpress for about 57 Canadian with shipping included. The headline feature is a number 9 steel nib, one of the biggest nib sizes you will commonly encounter, and out of the box it wrote beautifully.

This review covers the pen’s design, how it writes, and the one issue worth knowing about before you order.

What the Junlai 930 Is

The Junlai 930 is clearly inspired by the Montblanc 149, but bigger, with more length and arguably a bit more girth. It is a piston filler with an ink window, available in fine, medium, or broad steel nibs. The review unit is burgundy, and black and other finishes are also sold. To put the nib in perspective: a number 5 nib measures 5 mm at the feed, a number 6 is 6 mm, a number 8 is already very large, and this one is 9 mm. Anything smaller would look disproportionate on a pen this size.

The build quality is genuinely good. The cap finial, clip, and center band all feel considered, and the barrel is marked Junlai 930, made in Shanghai. The piston turns smoothly and drew roughly 1.8 ml of ink in testing, a generous capacity compared with the roughly 0.9 ml of a typical converter. The nib is engraved with the year 2013, presumably when the brand was established.

Writing Performance

Out of the box, this pen rode beautifully. The broad nib is smooth and wet without being a gusher, and the flow is nicely adjusted. The broad is an actual broad, delivering roughly a 1 mm line, but not so wide that it becomes unusable for everyday writing. Long writing sessions did not dry the feed out; it kept up consistently.

A few small notes from testing: occasional skips and one hard start appeared on coated paper during fast demonstration writing, but normal-speed writing produced no skips, and the hard-start test passed smoothly. As often happens with broad nibs, there is a slight italic tendency, with side strokes a touch narrower than downstrokes. It is not a flex nib, though a careful writer can squeeze out a small amount of line variation, and reverse writing works well, landing around an extra-fine line.

The girth is real. Fingers do not all touch when holding this pen, and posted it becomes almost comically large. If you prefer smaller pens, this is simply not your pen.

Things to Consider Before Buying

One practical issue came up during extended use. Ink began to darken at the point where the nib meets the section, apparently a tiny gap between the end of the section and the nib collar. Tightening the nib unit with a small wrench, which fits the two slots on the nib collar perfectly, stopped the leakage so far. A dab of silicone grease on the threads when the pen is fully dry may be a permanent fix, but leaking around the nib is a real possibility out of the box.

Second, the pen’s size is a liability in some pen cases. It will stick out of many standard slots and likely will not fit under a flap, so plan on a larger case. Third, the included wrench is sold separately on AliExpress for a couple of dollars; ordering one with the pen makes disassembly and lubrication easy. A small tube of piston grease is also included, which is a nice touch. Just never put that grease into a cartridge converter pen, because it is nearly impossible to clean out of a nib and feed once it gets in.

Who This Pen Is For

The Junlai 930 suits writers who want a large, comfortable pen with genuine presence, a big smooth broad nib, and the economy of a piston filler, without paying flagship prices. It is not a Montblanc, and it does not pretend to be. But the proportions work well, with both the length and the girth that some find missing from the pen it imitates, and it is a fraction of the cost.

Conclusion

The Junlai 930 is a well-made, pleasant-writing piston filler with a colossal number 9 nib and generous ink capacity, at a very accessible price. The potential nib-collar leak is the one caveat, and it appears fixable with tightening and a little silicone grease. If you have always wanted a big, 149-style writer and do not want to spend flagship money, this is an easy pen to recommend.